18787440

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:287

約数の個数: 160

約数和(自身を含む): 68138496

約数和(自身を除く): 49351056

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 53, 56, 60, 70, 80, 84, 105, 106, 112, 120, 140, 159, 168, 210, 211, 212, 240, 265, 280, 318, 336, 371, 420, 422, 424, 530, 560, 633, 636, 742, 795, 840, 844, 848, 1055, 1060, 1113, 1266, 1272, 1477, 1484, 1590, 1680, 1688, 1855, 2110, 2120, 2226, 2532, 2544, 2954, 2968, 3165, 3180, 3376, 3710, 4220, 4240, 4431, 4452, 5064, 5565, 5908, 5936, 6330, 6360, 7385, 7420, 8440, 8862, 8904, 10128, 11130, 11183, 11816, 12660, 12720, 14770, 14840, 16880, 17724, 17808, 22155, 22260, 22366, 23632, 25320, 29540, 29680, 33549, 35448, 44310, 44520, 44732, 50640, 55915, 59080, 67098, 70896, 78281, 88620, 89040, 89464, 111830, 118160, 134196, 156562, 167745, 177240, 178928, 223660, 234843, 268392, 313124, 335490, 354480, 391405, 447320, 469686, 536784, 626248, 670980, 782810, 894640, 939372, 1174215, 1252496, 1341960, 1565620, 1878744, 2348430, 2683920, 3131240, 3757488, 4696860, 6262480, 9393720, 18787440]

約数ペア:

[(1, 18787440), (2, 9393720), (3, 6262480), (4, 4696860), (5, 3757488), (6, 3131240), (7, 2683920), (8, 2348430), (10, 1878744), (12, 1565620), (14, 1341960), (15, 1252496), (16, 1174215), (20, 939372), (21, 894640), (24, 782810), (28, 670980), (30, 626248), (35, 536784), (40, 469686), (42, 447320), (48, 391405), (53, 354480), (56, 335490), (60, 313124), (70, 268392), (80, 234843), (84, 223660), (105, 178928), (106, 177240), (112, 167745), (120, 156562), (140, 134196), (159, 118160), (168, 111830), (210, 89464), (211, 89040), (212, 88620), (240, 78281), (265, 70896), (280, 67098), (318, 59080), (336, 55915), (371, 50640), (420, 44732), (422, 44520), (424, 44310), (530, 35448), (560, 33549), (633, 29680), (636, 29540), (742, 25320), (795, 23632), (840, 22366), (844, 22260), (848, 22155), (1055, 17808), (1060, 17724), (1113, 16880), (1266, 14840), (1272, 14770), (1477, 12720), (1484, 12660), (1590, 11816), (1680, 11183), (1688, 11130), (1855, 10128), (2110, 8904), (2120, 8862), (2226, 8440), (2532, 7420), (2544, 7385), (2954, 6360), (2968, 6330), (3165, 5936), (3180, 5908), (3376, 5565), (3710, 5064), (4220, 4452), (4240, 4431)]