78565640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{761}}^1$

素因数の和:890

約数の個数: 64

約数和(自身を含む): 185166000

約数和(自身を除く): 106600360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 89, 116, 145, 178, 232, 290, 356, 445, 580, 712, 761, 890, 1160, 1522, 1780, 2581, 3044, 3560, 3805, 5162, 6088, 7610, 10324, 12905, 15220, 20648, 22069, 25810, 30440, 44138, 51620, 67729, 88276, 103240, 110345, 135458, 176552, 220690, 270916, 338645, 441380, 541832, 677290, 882760, 1354580, 1964141, 2709160, 3928282, 7856564, 9820705, 15713128, 19641410, 39282820, 78565640]

約数ペア:

[(1, 78565640), (2, 39282820), (4, 19641410), (5, 15713128), (8, 9820705), (10, 7856564), (20, 3928282), (29, 2709160), (40, 1964141), (58, 1354580), (89, 882760), (116, 677290), (145, 541832), (178, 441380), (232, 338645), (290, 270916), (356, 220690), (445, 176552), (580, 135458), (712, 110345), (761, 103240), (890, 88276), (1160, 67729), (1522, 51620), (1780, 44138), (2581, 30440), (3044, 25810), (3560, 22069), (3805, 20648), (5162, 15220), (6088, 12905), (7610, 10324)]