257449140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{409}}^1$

素因数の和:706

約数の個数: 144

約数和(自身を含む): 846190800

約数和(自身を除く): 588741660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 269, 390, 409, 468, 538, 585, 780, 807, 818, 1076, 1170, 1227, 1345, 1614, 1636, 2045, 2340, 2421, 2454, 2690, 3228, 3497, 3681, 4035, 4090, 4842, 4908, 5317, 5380, 6135, 6994, 7362, 8070, 8180, 9684, 10491, 10634, 12105, 12270, 13988, 14724, 15951, 16140, 17485, 18405, 20982, 21268, 24210, 24540, 26585, 31473, 31902, 34970, 36810, 41964, 47853, 48420, 52455, 53170, 62946, 63804, 69940, 73620, 79755, 95706, 104910, 106340, 110021, 125892, 157365, 159510, 191412, 209820, 220042, 239265, 314730, 319020, 330063, 440084, 478530, 550105, 629460, 660126, 957060, 990189, 1100210, 1320252, 1430273, 1650315, 1980378, 2200420, 2860546, 3300630, 3960756, 4290819, 4950945, 5721092, 6601260, 7151365, 8581638, 9901890, 12872457, 14302730, 17163276, 19803780, 21454095, 25744914, 28605460, 42908190, 51489828, 64362285, 85816380, 128724570, 257449140]

約数ペア:

[(1, 257449140), (2, 128724570), (3, 85816380), (4, 64362285), (5, 51489828), (6, 42908190), (9, 28605460), (10, 25744914), (12, 21454095), (13, 19803780), (15, 17163276), (18, 14302730), (20, 12872457), (26, 9901890), (30, 8581638), (36, 7151365), (39, 6601260), (45, 5721092), (52, 4950945), (60, 4290819), (65, 3960756), (78, 3300630), (90, 2860546), (117, 2200420), (130, 1980378), (156, 1650315), (180, 1430273), (195, 1320252), (234, 1100210), (260, 990189), (269, 957060), (390, 660126), (409, 629460), (468, 550105), (538, 478530), (585, 440084), (780, 330063), (807, 319020), (818, 314730), (1076, 239265), (1170, 220042), (1227, 209820), (1345, 191412), (1614, 159510), (1636, 157365), (2045, 125892), (2340, 110021), (2421, 106340), (2454, 104910), (2690, 95706), (3228, 79755), (3497, 73620), (3681, 69940), (4035, 63804), (4090, 62946), (4842, 53170), (4908, 52455), (5317, 48420), (5380, 47853), (6135, 41964), (6994, 36810), (7362, 34970), (8070, 31902), (8180, 31473), (9684, 26585), (10491, 24540), (10634, 24210), (12105, 21268), (12270, 20982), (13988, 18405), (14724, 17485), (15951, 16140)]