720630430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{13963}}^1$

素因数の和:14380

約数の個数: 32

約数和(自身を含む): 1400533344

約数和(自身を除く): 679902914

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 397, 794, 1985, 3970, 5161, 10322, 13963, 25805, 27926, 51610, 69815, 139630, 181519, 363038, 907595, 1815190, 5543311, 11086622, 27716555, 55433110, 72063043, 144126086, 360315215, 720630430]

約数ペア:

[(1, 720630430), (2, 360315215), (5, 144126086), (10, 72063043), (13, 55433110), (26, 27716555), (65, 11086622), (130, 5543311), (397, 1815190), (794, 907595), (1985, 363038), (3970, 181519), (5161, 139630), (10322, 69815), (13963, 51610), (25805, 27926)]