20925450

素因数分解:

$2^1\times 3^2\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1$

素因数の和:118

約数の個数: 216

約数和(自身を含む): 71393868

約数和(自身を除く): 50468418

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 25, 26, 30, 35, 39, 42, 45, 49, 50, 63, 65, 70, 73, 75, 78, 90, 91, 98, 105, 117, 126, 130, 146, 147, 150, 175, 182, 195, 210, 219, 225, 234, 245, 273, 294, 315, 325, 350, 365, 390, 438, 441, 450, 455, 490, 511, 525, 546, 585, 630, 637, 650, 657, 730, 735, 819, 882, 910, 949, 975, 1022, 1050, 1095, 1170, 1225, 1274, 1314, 1365, 1470, 1533, 1575, 1638, 1825, 1898, 1911, 1950, 2190, 2205, 2275, 2450, 2555, 2730, 2847, 2925, 3066, 3150, 3185, 3285, 3577, 3650, 3675, 3822, 4095, 4410, 4550, 4599, 4745, 5110, 5475, 5694, 5733, 5850, 6370, 6570, 6643, 6825, 7154, 7350, 7665, 8190, 8541, 9198, 9490, 9555, 10731, 10950, 11025, 11466, 12775, 13286, 13650, 14235, 15330, 15925, 16425, 17082, 17885, 19110, 19929, 20475, 21462, 22050, 22995, 23725, 25550, 28470, 28665, 31850, 32193, 32850, 33215, 35770, 38325, 39858, 40950, 42705, 45990, 46501, 47450, 47775, 53655, 57330, 59787, 64386, 66430, 71175, 76650, 85410, 89425, 93002, 95550, 99645, 107310, 114975, 119574, 139503, 142350, 143325, 160965, 166075, 178850, 199290, 213525, 229950, 232505, 268275, 279006, 286650, 298935, 321930, 332150, 418509, 427050, 465010, 498225, 536550, 597870, 697515, 804825, 837018, 996450, 1162525, 1395030, 1494675, 1609650, 2092545, 2325050, 2989350, 3487575, 4185090, 6975150, 10462725, 20925450]

約数ペア:

[(1, 20925450), (2, 10462725), (3, 6975150), (5, 4185090), (6, 3487575), (7, 2989350), (9, 2325050), (10, 2092545), (13, 1609650), (14, 1494675), (15, 1395030), (18, 1162525), (21, 996450), (25, 837018), (26, 804825), (30, 697515), (35, 597870), (39, 536550), (42, 498225), (45, 465010), (49, 427050), (50, 418509), (63, 332150), (65, 321930), (70, 298935), (73, 286650), (75, 279006), (78, 268275), (90, 232505), (91, 229950), (98, 213525), (105, 199290), (117, 178850), (126, 166075), (130, 160965), (146, 143325), (147, 142350), (150, 139503), (175, 119574), (182, 114975), (195, 107310), (210, 99645), (219, 95550), (225, 93002), (234, 89425), (245, 85410), (273, 76650), (294, 71175), (315, 66430), (325, 64386), (350, 59787), (365, 57330), (390, 53655), (438, 47775), (441, 47450), (450, 46501), (455, 45990), (490, 42705), (511, 40950), (525, 39858), (546, 38325), (585, 35770), (630, 33215), (637, 32850), (650, 32193), (657, 31850), (730, 28665), (735, 28470), (819, 25550), (882, 23725), (910, 22995), (949, 22050), (975, 21462), (1022, 20475), (1050, 19929), (1095, 19110), (1170, 17885), (1225, 17082), (1274, 16425), (1314, 15925), (1365, 15330), (1470, 14235), (1533, 13650), (1575, 13286), (1638, 12775), (1825, 11466), (1898, 11025), (1911, 10950), (1950, 10731), (2190, 9555), (2205, 9490), (2275, 9198), (2450, 8541), (2555, 8190), (2730, 7665), (2847, 7350), (2925, 7154), (3066, 6825), (3150, 6643), (3185, 6570), (3285, 6370), (3577, 5850), (3650, 5733), (3675, 5694), (3822, 5475), (4095, 5110), (4410, 4745), (4550, 4599)]