90187760

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{86719}}^1$

素因数の和:86745

約数の個数: 40

約数和(自身を含む): 225818880

約数和(自身を除く): 135631120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 86719, 173438, 346876, 433595, 693752, 867190, 1127347, 1387504, 1734380, 2254694, 3468760, 4509388, 5636735, 6937520, 9018776, 11273470, 18037552, 22546940, 45093880, 90187760]

約数ペア:

[(1, 90187760), (2, 45093880), (4, 22546940), (5, 18037552), (8, 11273470), (10, 9018776), (13, 6937520), (16, 5636735), (20, 4509388), (26, 3468760), (40, 2254694), (52, 1734380), (65, 1387504), (80, 1127347), (104, 867190), (130, 693752), (208, 433595), (260, 346876), (520, 173438), (1040, 86719)]