31780476080

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1545743}}^1$

素因数の和:1546013

約数の個数: 40

約数和(自身を含む): 74177163072

約数和(自身を除く): 42396686992

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 2056, 2570, 4112, 5140, 10280, 20560, 1545743, 3091486, 6182972, 7728715, 12365944, 15457430, 24731888, 30914860, 61829720, 123659440, 397255951, 794511902, 1589023804, 1986279755, 3178047608, 3972559510, 6356095216, 7945119020, 15890238040, 31780476080]

約数ペア:

[(1, 31780476080), (2, 15890238040), (4, 7945119020), (5, 6356095216), (8, 3972559510), (10, 3178047608), (16, 1986279755), (20, 1589023804), (40, 794511902), (80, 397255951), (257, 123659440), (514, 61829720), (1028, 30914860), (1285, 24731888), (2056, 15457430), (2570, 12365944), (4112, 7728715), (5140, 6182972), (10280, 3091486), (20560, 1545743)]