85680400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{16477}}^1$

素因数の和:16508

約数の個数: 60

約数和(自身を含む): 221695012

約数和(自身を除く): 136014612

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 16477, 32954, 65908, 82385, 131816, 164770, 214201, 263632, 329540, 411925, 428402, 659080, 823850, 856804, 1071005, 1318160, 1647700, 1713608, 2142010, 3295400, 3427216, 4284020, 5355025, 6590800, 8568040, 10710050, 17136080, 21420100, 42840200, 85680400]

約数ペア:

[(1, 85680400), (2, 42840200), (4, 21420100), (5, 17136080), (8, 10710050), (10, 8568040), (13, 6590800), (16, 5355025), (20, 4284020), (25, 3427216), (26, 3295400), (40, 2142010), (50, 1713608), (52, 1647700), (65, 1318160), (80, 1071005), (100, 856804), (104, 823850), (130, 659080), (200, 428402), (208, 411925), (260, 329540), (325, 263632), (400, 214201), (520, 164770), (650, 131816), (1040, 82385), (1300, 65908), (2600, 32954), (5200, 16477)]