18894960

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:212

約数の個数: 240

約数和(自身を含む): 76137984

約数和(自身を除く): 57243024

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 23, 24, 28, 30, 35, 36, 40, 42, 45, 46, 48, 56, 60, 63, 69, 70, 72, 80, 84, 90, 92, 105, 112, 115, 120, 126, 138, 140, 144, 161, 163, 168, 180, 184, 207, 210, 230, 240, 252, 276, 280, 315, 322, 326, 336, 345, 360, 368, 414, 420, 460, 483, 489, 504, 552, 560, 630, 644, 652, 690, 720, 805, 815, 828, 840, 920, 966, 978, 1008, 1035, 1104, 1141, 1260, 1288, 1304, 1380, 1449, 1467, 1610, 1630, 1656, 1680, 1840, 1932, 1956, 2070, 2282, 2415, 2445, 2520, 2576, 2608, 2760, 2898, 2934, 3220, 3260, 3312, 3423, 3749, 3864, 3912, 4140, 4564, 4830, 4890, 5040, 5520, 5705, 5796, 5868, 6440, 6520, 6846, 7245, 7335, 7498, 7728, 7824, 8280, 9128, 9660, 9780, 10269, 11247, 11410, 11592, 11736, 12880, 13040, 13692, 14490, 14670, 14996, 16560, 17115, 18256, 18745, 19320, 19560, 20538, 22494, 22820, 23184, 23472, 26243, 27384, 28980, 29340, 29992, 33741, 34230, 37490, 38640, 39120, 41076, 44988, 45640, 51345, 52486, 54768, 56235, 57960, 58680, 59984, 67482, 68460, 74980, 78729, 82152, 89976, 91280, 102690, 104972, 112470, 115920, 117360, 131215, 134964, 136920, 149960, 157458, 164304, 168705, 179952, 205380, 209944, 224940, 236187, 262430, 269928, 273840, 299920, 314916, 337410, 393645, 410760, 419888, 449880, 472374, 524860, 539856, 629832, 674820, 787290, 821520, 899760, 944748, 1049720, 1180935, 1259664, 1349640, 1574580, 1889496, 2099440, 2361870, 2699280, 3149160, 3778992, 4723740, 6298320, 9447480, 18894960]

約数ペア:

[(1, 18894960), (2, 9447480), (3, 6298320), (4, 4723740), (5, 3778992), (6, 3149160), (7, 2699280), (8, 2361870), (9, 2099440), (10, 1889496), (12, 1574580), (14, 1349640), (15, 1259664), (16, 1180935), (18, 1049720), (20, 944748), (21, 899760), (23, 821520), (24, 787290), (28, 674820), (30, 629832), (35, 539856), (36, 524860), (40, 472374), (42, 449880), (45, 419888), (46, 410760), (48, 393645), (56, 337410), (60, 314916), (63, 299920), (69, 273840), (70, 269928), (72, 262430), (80, 236187), (84, 224940), (90, 209944), (92, 205380), (105, 179952), (112, 168705), (115, 164304), (120, 157458), (126, 149960), (138, 136920), (140, 134964), (144, 131215), (161, 117360), (163, 115920), (168, 112470), (180, 104972), (184, 102690), (207, 91280), (210, 89976), (230, 82152), (240, 78729), (252, 74980), (276, 68460), (280, 67482), (315, 59984), (322, 58680), (326, 57960), (336, 56235), (345, 54768), (360, 52486), (368, 51345), (414, 45640), (420, 44988), (460, 41076), (483, 39120), (489, 38640), (504, 37490), (552, 34230), (560, 33741), (630, 29992), (644, 29340), (652, 28980), (690, 27384), (720, 26243), (805, 23472), (815, 23184), (828, 22820), (840, 22494), (920, 20538), (966, 19560), (978, 19320), (1008, 18745), (1035, 18256), (1104, 17115), (1141, 16560), (1260, 14996), (1288, 14670), (1304, 14490), (1380, 13692), (1449, 13040), (1467, 12880), (1610, 11736), (1630, 11592), (1656, 11410), (1680, 11247), (1840, 10269), (1932, 9780), (1956, 9660), (2070, 9128), (2282, 8280), (2415, 7824), (2445, 7728), (2520, 7498), (2576, 7335), (2608, 7245), (2760, 6846), (2898, 6520), (2934, 6440), (3220, 5868), (3260, 5796), (3312, 5705), (3423, 5520), (3749, 5040), (3864, 4890), (3912, 4830), (4140, 4564)]