215074990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1\times {\mathrm{317}}^1$

素因数の和:661

約数の個数: 64

約数和(自身を含む): 444273984

約数和(自身を除く): 229198994

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 307, 317, 442, 614, 634, 1105, 1535, 1585, 2210, 3070, 3170, 3991, 4121, 5219, 5389, 7982, 8242, 10438, 10778, 19955, 20605, 26095, 26945, 39910, 41210, 52190, 53890, 67847, 70057, 97319, 135694, 140114, 194638, 339235, 350285, 486595, 678470, 700570, 973190, 1265147, 1654423, 2530294, 3308846, 6325735, 8272115, 12651470, 16544230, 21507499, 43014998, 107537495, 215074990]

約数ペア:

[(1, 215074990), (2, 107537495), (5, 43014998), (10, 21507499), (13, 16544230), (17, 12651470), (26, 8272115), (34, 6325735), (65, 3308846), (85, 2530294), (130, 1654423), (170, 1265147), (221, 973190), (307, 700570), (317, 678470), (442, 486595), (614, 350285), (634, 339235), (1105, 194638), (1535, 140114), (1585, 135694), (2210, 97319), (3070, 70057), (3170, 67847), (3991, 53890), (4121, 52190), (5219, 41210), (5389, 39910), (7982, 26945), (8242, 26095), (10438, 20605), (10778, 19955)]