18268120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^2$

素因数の和:129

約数の個数: 96

約数和(自身を含む): 47703600

約数和(自身を除く): 29435480

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 43, 52, 65, 76, 86, 95, 104, 130, 152, 172, 190, 215, 247, 260, 344, 380, 430, 494, 520, 559, 760, 817, 860, 988, 1118, 1235, 1634, 1720, 1849, 1976, 2236, 2470, 2795, 3268, 3698, 4085, 4472, 4940, 5590, 6536, 7396, 8170, 9245, 9880, 10621, 11180, 14792, 16340, 18490, 21242, 22360, 24037, 32680, 35131, 36980, 42484, 48074, 53105, 70262, 73960, 84968, 96148, 106210, 120185, 140524, 175655, 192296, 212420, 240370, 281048, 351310, 424840, 456703, 480740, 702620, 913406, 961480, 1405240, 1826812, 2283515, 3653624, 4567030, 9134060, 18268120]

約数ペア:

[(1, 18268120), (2, 9134060), (4, 4567030), (5, 3653624), (8, 2283515), (10, 1826812), (13, 1405240), (19, 961480), (20, 913406), (26, 702620), (38, 480740), (40, 456703), (43, 424840), (52, 351310), (65, 281048), (76, 240370), (86, 212420), (95, 192296), (104, 175655), (130, 140524), (152, 120185), (172, 106210), (190, 96148), (215, 84968), (247, 73960), (260, 70262), (344, 53105), (380, 48074), (430, 42484), (494, 36980), (520, 35131), (559, 32680), (760, 24037), (817, 22360), (860, 21242), (988, 18490), (1118, 16340), (1235, 14792), (1634, 11180), (1720, 10621), (1849, 9880), (1976, 9245), (2236, 8170), (2470, 7396), (2795, 6536), (3268, 5590), (3698, 4940), (4085, 4472)]