66989240

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{45263}}^1$

素因数の和:45311

約数の個数: 32

約数和(自身を含む): 154802880

約数和(自身を除く): 87813640

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 45263, 90526, 181052, 226315, 362104, 452630, 905260, 1674731, 1810520, 3349462, 6698924, 8373655, 13397848, 16747310, 33494620, 66989240]

約数ペア:

[(1, 66989240), (2, 33494620), (4, 16747310), (5, 13397848), (8, 8373655), (10, 6698924), (20, 3349462), (37, 1810520), (40, 1674731), (74, 905260), (148, 452630), (185, 362104), (296, 226315), (370, 181052), (740, 90526), (1480, 45263)]