18999240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{641}}^1$

素因数の和:687

約数の個数: 128

約数和(自身を含む): 64713600

約数和(自身を除く): 45714360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 19, 20, 24, 26, 30, 38, 39, 40, 52, 57, 60, 65, 76, 78, 95, 104, 114, 120, 130, 152, 156, 190, 195, 228, 247, 260, 285, 312, 380, 390, 456, 494, 520, 570, 641, 741, 760, 780, 988, 1140, 1235, 1282, 1482, 1560, 1923, 1976, 2280, 2470, 2564, 2964, 3205, 3705, 3846, 4940, 5128, 5928, 6410, 7410, 7692, 8333, 9615, 9880, 12179, 12820, 14820, 15384, 16666, 19230, 24358, 24999, 25640, 29640, 33332, 36537, 38460, 41665, 48716, 49998, 60895, 66664, 73074, 76920, 83330, 97432, 99996, 121790, 124995, 146148, 158327, 166660, 182685, 199992, 243580, 249990, 292296, 316654, 333320, 365370, 474981, 487160, 499980, 633308, 730740, 791635, 949962, 999960, 1266616, 1461480, 1583270, 1899924, 2374905, 3166540, 3799848, 4749810, 6333080, 9499620, 18999240]

約数ペア:

[(1, 18999240), (2, 9499620), (3, 6333080), (4, 4749810), (5, 3799848), (6, 3166540), (8, 2374905), (10, 1899924), (12, 1583270), (13, 1461480), (15, 1266616), (19, 999960), (20, 949962), (24, 791635), (26, 730740), (30, 633308), (38, 499980), (39, 487160), (40, 474981), (52, 365370), (57, 333320), (60, 316654), (65, 292296), (76, 249990), (78, 243580), (95, 199992), (104, 182685), (114, 166660), (120, 158327), (130, 146148), (152, 124995), (156, 121790), (190, 99996), (195, 97432), (228, 83330), (247, 76920), (260, 73074), (285, 66664), (312, 60895), (380, 49998), (390, 48716), (456, 41665), (494, 38460), (520, 36537), (570, 33332), (641, 29640), (741, 25640), (760, 24999), (780, 24358), (988, 19230), (1140, 16666), (1235, 15384), (1282, 14820), (1482, 12820), (1560, 12179), (1923, 9880), (1976, 9615), (2280, 8333), (2470, 7692), (2564, 7410), (2964, 6410), (3205, 5928), (3705, 5128), (3846, 4940)]