128427780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{719}}^1$

素因数の和:973

約数の個数: 96

約数和(自身を含む): 389491200

約数和(自身を除く): 261063420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 229, 260, 390, 458, 687, 719, 780, 916, 1145, 1374, 1438, 2157, 2290, 2748, 2876, 2977, 3435, 3595, 4314, 4580, 5954, 6870, 7190, 8628, 8931, 9347, 10785, 11908, 13740, 14380, 14885, 17862, 18694, 21570, 28041, 29770, 35724, 37388, 43140, 44655, 46735, 56082, 59540, 89310, 93470, 112164, 140205, 164651, 178620, 186940, 280410, 329302, 493953, 560820, 658604, 823255, 987906, 1646510, 1975812, 2140463, 2469765, 3293020, 4280926, 4939530, 6421389, 8561852, 9879060, 10702315, 12842778, 21404630, 25685556, 32106945, 42809260, 64213890, 128427780]

約数ペア:

[(1, 128427780), (2, 64213890), (3, 42809260), (4, 32106945), (5, 25685556), (6, 21404630), (10, 12842778), (12, 10702315), (13, 9879060), (15, 8561852), (20, 6421389), (26, 4939530), (30, 4280926), (39, 3293020), (52, 2469765), (60, 2140463), (65, 1975812), (78, 1646510), (130, 987906), (156, 823255), (195, 658604), (229, 560820), (260, 493953), (390, 329302), (458, 280410), (687, 186940), (719, 178620), (780, 164651), (916, 140205), (1145, 112164), (1374, 93470), (1438, 89310), (2157, 59540), (2290, 56082), (2748, 46735), (2876, 44655), (2977, 43140), (3435, 37388), (3595, 35724), (4314, 29770), (4580, 28041), (5954, 21570), (6870, 18694), (7190, 17862), (8628, 14885), (8931, 14380), (9347, 13740), (10785, 11908)]