19703240

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{13313}}^1$

素因数の和:13361

約数の個数: 32

約数和(自身を含む): 45533880

約数和(自身を除く): 25830640

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 13313, 26626, 53252, 66565, 106504, 133130, 266260, 492581, 532520, 985162, 1970324, 2462905, 3940648, 4925810, 9851620, 19703240]

約数ペア:

[(1, 19703240), (2, 9851620), (4, 4925810), (5, 3940648), (8, 2462905), (10, 1970324), (20, 985162), (37, 532520), (40, 492581), (74, 266260), (148, 133130), (185, 106504), (296, 66565), (370, 53252), (740, 26626), (1480, 13313)]