18577860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:186

約数の個数: 144

約数和(自身を含む): 62052480

約数和(自身を除く): 43474620

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 71, 84, 89, 98, 105, 140, 142, 147, 178, 196, 210, 213, 245, 267, 284, 294, 355, 356, 420, 426, 445, 490, 497, 534, 588, 623, 710, 735, 852, 890, 980, 994, 1065, 1068, 1246, 1335, 1420, 1470, 1491, 1780, 1869, 1988, 2130, 2485, 2492, 2670, 2940, 2982, 3115, 3479, 3738, 4260, 4361, 4970, 5340, 5964, 6230, 6319, 6958, 7455, 7476, 8722, 9345, 9940, 10437, 12460, 12638, 13083, 13916, 14910, 17395, 17444, 18690, 18957, 20874, 21805, 25276, 26166, 29820, 31595, 34790, 37380, 37914, 41748, 43610, 44233, 52185, 52332, 63190, 65415, 69580, 75828, 87220, 88466, 94785, 104370, 126380, 130830, 132699, 176932, 189570, 208740, 221165, 261660, 265398, 309631, 379140, 442330, 530796, 619262, 663495, 884660, 928893, 1238524, 1326990, 1548155, 1857786, 2653980, 3096310, 3715572, 4644465, 6192620, 9288930, 18577860]

約数ペア:

[(1, 18577860), (2, 9288930), (3, 6192620), (4, 4644465), (5, 3715572), (6, 3096310), (7, 2653980), (10, 1857786), (12, 1548155), (14, 1326990), (15, 1238524), (20, 928893), (21, 884660), (28, 663495), (30, 619262), (35, 530796), (42, 442330), (49, 379140), (60, 309631), (70, 265398), (71, 261660), (84, 221165), (89, 208740), (98, 189570), (105, 176932), (140, 132699), (142, 130830), (147, 126380), (178, 104370), (196, 94785), (210, 88466), (213, 87220), (245, 75828), (267, 69580), (284, 65415), (294, 63190), (355, 52332), (356, 52185), (420, 44233), (426, 43610), (445, 41748), (490, 37914), (497, 37380), (534, 34790), (588, 31595), (623, 29820), (710, 26166), (735, 25276), (852, 21805), (890, 20874), (980, 18957), (994, 18690), (1065, 17444), (1068, 17395), (1246, 14910), (1335, 13916), (1420, 13083), (1470, 12638), (1491, 12460), (1780, 10437), (1869, 9940), (1988, 9345), (2130, 8722), (2485, 7476), (2492, 7455), (2670, 6958), (2940, 6319), (2982, 6230), (3115, 5964), (3479, 5340), (3738, 4970), (4260, 4361)]