15692420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 34328448

約数和(自身を除く): 18636028

約数列:

[1, 2, 4, 5, 10, 20, 43, 71, 86, 142, 172, 215, 257, 284, 355, 430, 514, 710, 860, 1028, 1285, 1420, 2570, 3053, 5140, 6106, 11051, 12212, 15265, 18247, 22102, 30530, 36494, 44204, 55255, 61060, 72988, 91235, 110510, 182470, 221020, 364940, 784621, 1569242, 3138484, 3923105, 7846210, 15692420]

約数ペア:

[(1, 15692420), (2, 7846210), (4, 3923105), (5, 3138484), (10, 1569242), (20, 784621), (43, 364940), (71, 221020), (86, 182470), (142, 110510), (172, 91235), (215, 72988), (257, 61060), (284, 55255), (355, 44204), (430, 36494), (514, 30530), (710, 22102), (860, 18247), (1028, 15265), (1285, 12212), (1420, 11051), (2570, 6106), (3053, 5140)]