257566920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4027}}^1$

素因数の和:4095

約数の個数: 128

約数和(自身を含む): 852647040

約数和(自身を除く): 595080120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 41, 52, 60, 65, 78, 82, 104, 120, 123, 130, 156, 164, 195, 205, 246, 260, 312, 328, 390, 410, 492, 520, 533, 615, 780, 820, 984, 1066, 1230, 1560, 1599, 1640, 2132, 2460, 2665, 3198, 4027, 4264, 4920, 5330, 6396, 7995, 8054, 10660, 12081, 12792, 15990, 16108, 20135, 21320, 24162, 31980, 32216, 40270, 48324, 52351, 60405, 63960, 80540, 96648, 104702, 120810, 157053, 161080, 165107, 209404, 241620, 261755, 314106, 330214, 418808, 483240, 495321, 523510, 628212, 660428, 785265, 825535, 990642, 1047020, 1256424, 1320856, 1570530, 1651070, 1981284, 2094040, 2146391, 2476605, 3141060, 3302140, 3962568, 4292782, 4953210, 6282120, 6439173, 6604280, 8585564, 9906420, 10731955, 12878346, 17171128, 19812840, 21463910, 25756692, 32195865, 42927820, 51513384, 64391730, 85855640, 128783460, 257566920]

約数ペア:

[(1, 257566920), (2, 128783460), (3, 85855640), (4, 64391730), (5, 51513384), (6, 42927820), (8, 32195865), (10, 25756692), (12, 21463910), (13, 19812840), (15, 17171128), (20, 12878346), (24, 10731955), (26, 9906420), (30, 8585564), (39, 6604280), (40, 6439173), (41, 6282120), (52, 4953210), (60, 4292782), (65, 3962568), (78, 3302140), (82, 3141060), (104, 2476605), (120, 2146391), (123, 2094040), (130, 1981284), (156, 1651070), (164, 1570530), (195, 1320856), (205, 1256424), (246, 1047020), (260, 990642), (312, 825535), (328, 785265), (390, 660428), (410, 628212), (492, 523510), (520, 495321), (533, 483240), (615, 418808), (780, 330214), (820, 314106), (984, 261755), (1066, 241620), (1230, 209404), (1560, 165107), (1599, 161080), (1640, 157053), (2132, 120810), (2460, 104702), (2665, 96648), (3198, 80540), (4027, 63960), (4264, 60405), (4920, 52351), (5330, 48324), (6396, 40270), (7995, 32216), (8054, 31980), (10660, 24162), (12081, 21320), (12792, 20135), (15990, 16108)]