1286291240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{557}}^1\times {\mathrm{4441}}^1$

素因数の和:5022

約数の個数: 64

約数和(自身を含む): 3123081360

約数和(自身を除く): 1836790120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 557, 1114, 2228, 2785, 4441, 4456, 5570, 7241, 8882, 11140, 14482, 17764, 22205, 22280, 28964, 35528, 36205, 44410, 57733, 57928, 72410, 88820, 115466, 144820, 177640, 230932, 288665, 289640, 461864, 577330, 1154660, 2309320, 2473637, 4947274, 9894548, 12368185, 19789096, 24736370, 32157281, 49472740, 64314562, 98945480, 128629124, 160786405, 257258248, 321572810, 643145620, 1286291240]

約数ペア:

[(1, 1286291240), (2, 643145620), (4, 321572810), (5, 257258248), (8, 160786405), (10, 128629124), (13, 98945480), (20, 64314562), (26, 49472740), (40, 32157281), (52, 24736370), (65, 19789096), (104, 12368185), (130, 9894548), (260, 4947274), (520, 2473637), (557, 2309320), (1114, 1154660), (2228, 577330), (2785, 461864), (4441, 289640), (4456, 288665), (5570, 230932), (7241, 177640), (8882, 144820), (11140, 115466), (14482, 88820), (17764, 72410), (22205, 57928), (22280, 57733), (28964, 44410), (35528, 36205)]