251908020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{13}}^4$

素因数の和:81

約数の個数: 270

約数和(自身を含む): 962945802

約数和(自身を除く): 711037782

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 28, 30, 35, 36, 39, 42, 45, 49, 52, 60, 63, 65, 70, 78, 84, 90, 91, 98, 105, 117, 126, 130, 140, 147, 156, 169, 180, 182, 195, 196, 210, 234, 245, 252, 260, 273, 294, 315, 338, 364, 390, 420, 441, 455, 468, 490, 507, 546, 585, 588, 630, 637, 676, 735, 780, 819, 845, 882, 910, 980, 1014, 1092, 1170, 1183, 1260, 1274, 1365, 1470, 1521, 1638, 1690, 1764, 1820, 1911, 2028, 2197, 2205, 2340, 2366, 2535, 2548, 2730, 2940, 3042, 3185, 3276, 3380, 3549, 3822, 4095, 4394, 4410, 4732, 5070, 5460, 5733, 5915, 6084, 6370, 6591, 7098, 7605, 7644, 8190, 8281, 8788, 8820, 9555, 10140, 10647, 10985, 11466, 11830, 12740, 13182, 14196, 15210, 15379, 16380, 16562, 17745, 19110, 19773, 21294, 21970, 22932, 23660, 24843, 26364, 28561, 28665, 30420, 30758, 32955, 33124, 35490, 38220, 39546, 41405, 42588, 43940, 46137, 49686, 53235, 57122, 57330, 61516, 65910, 70980, 74529, 76895, 79092, 82810, 85683, 92274, 98865, 99372, 106470, 107653, 114244, 114660, 124215, 131820, 138411, 142805, 149058, 153790, 165620, 171366, 184548, 197730, 199927, 212940, 215306, 230685, 248430, 257049, 276822, 285610, 298116, 307580, 322959, 342732, 372645, 395460, 399854, 428415, 430612, 461370, 496860, 514098, 538265, 553644, 571220, 599781, 645918, 692055, 745290, 799708, 856830, 922740, 968877, 999635, 1028196, 1076530, 1199562, 1285245, 1291836, 1384110, 1399489, 1490580, 1614795, 1713660, 1799343, 1937754, 1999270, 2153060, 2399124, 2570490, 2768220, 2798978, 2998905, 3229590, 3598686, 3875508, 3998540, 4198467, 4844385, 5140980, 5597956, 5997810, 6459180, 6997445, 7197372, 8396934, 8996715, 9688770, 11995620, 12595401, 13994890, 16793868, 17993430, 19377540, 20992335, 25190802, 27989780, 35986860, 41984670, 50381604, 62977005, 83969340, 125954010, 251908020]

約数ペア:

[(1, 251908020), (2, 125954010), (3, 83969340), (4, 62977005), (5, 50381604), (6, 41984670), (7, 35986860), (9, 27989780), (10, 25190802), (12, 20992335), (13, 19377540), (14, 17993430), (15, 16793868), (18, 13994890), (20, 12595401), (21, 11995620), (26, 9688770), (28, 8996715), (30, 8396934), (35, 7197372), (36, 6997445), (39, 6459180), (42, 5997810), (45, 5597956), (49, 5140980), (52, 4844385), (60, 4198467), (63, 3998540), (65, 3875508), (70, 3598686), (78, 3229590), (84, 2998905), (90, 2798978), (91, 2768220), (98, 2570490), (105, 2399124), (117, 2153060), (126, 1999270), (130, 1937754), (140, 1799343), (147, 1713660), (156, 1614795), (169, 1490580), (180, 1399489), (182, 1384110), (195, 1291836), (196, 1285245), (210, 1199562), (234, 1076530), (245, 1028196), (252, 999635), (260, 968877), (273, 922740), (294, 856830), (315, 799708), (338, 745290), (364, 692055), (390, 645918), (420, 599781), (441, 571220), (455, 553644), (468, 538265), (490, 514098), (507, 496860), (546, 461370), (585, 430612), (588, 428415), (630, 399854), (637, 395460), (676, 372645), (735, 342732), (780, 322959), (819, 307580), (845, 298116), (882, 285610), (910, 276822), (980, 257049), (1014, 248430), (1092, 230685), (1170, 215306), (1183, 212940), (1260, 199927), (1274, 197730), (1365, 184548), (1470, 171366), (1521, 165620), (1638, 153790), (1690, 149058), (1764, 142805), (1820, 138411), (1911, 131820), (2028, 124215), (2197, 114660), (2205, 114244), (2340, 107653), (2366, 106470), (2535, 99372), (2548, 98865), (2730, 92274), (2940, 85683), (3042, 82810), (3185, 79092), (3276, 76895), (3380, 74529), (3549, 70980), (3822, 65910), (4095, 61516), (4394, 57330), (4410, 57122), (4732, 53235), (5070, 49686), (5460, 46137), (5733, 43940), (5915, 42588), (6084, 41405), (6370, 39546), (6591, 38220), (7098, 35490), (7605, 33124), (7644, 32955), (8190, 30758), (8281, 30420), (8788, 28665), (8820, 28561), (9555, 26364), (10140, 24843), (10647, 23660), (10985, 22932), (11466, 21970), (11830, 21294), (12740, 19773), (13182, 19110), (14196, 17745), (15210, 16562), (15379, 16380)]