320587912

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{20477}}^1$

素因数の和:20605

約数の個数: 32

約数和(自身を含む): 638913600

約数和(自身を除く): 318325688

約数列:

[1, 2, 4, 8, 19, 38, 76, 103, 152, 206, 412, 824, 1957, 3914, 7828, 15656, 20477, 40954, 81908, 163816, 389063, 778126, 1556252, 2109131, 3112504, 4218262, 8436524, 16873048, 40073489, 80146978, 160293956, 320587912]

約数ペア:

[(1, 320587912), (2, 160293956), (4, 80146978), (8, 40073489), (19, 16873048), (38, 8436524), (76, 4218262), (103, 3112504), (152, 2109131), (206, 1556252), (412, 778126), (824, 389063), (1957, 163816), (3914, 81908), (7828, 40954), (15656, 20477)]