3940374640

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{623477}}^1$

素因数の和:623569

約数の個数: 40

約数和(自身を含む): 9277352640

約数和(自身を除く): 5336978000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 623477, 1246954, 2493908, 3117385, 4987816, 6234770, 9975632, 12469540, 24939080, 49254683, 49878160, 98509366, 197018732, 246273415, 394037464, 492546830, 788074928, 985093660, 1970187320, 3940374640]

約数ペア:

[(1, 3940374640), (2, 1970187320), (4, 985093660), (5, 788074928), (8, 492546830), (10, 394037464), (16, 246273415), (20, 197018732), (40, 98509366), (79, 49878160), (80, 49254683), (158, 24939080), (316, 12469540), (395, 9975632), (632, 6234770), (790, 4987816), (1264, 3117385), (1580, 2493908), (3160, 1246954), (6320, 623477)]