15351620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{569}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 34473600

約数和(自身を除く): 19121980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 569, 710, 1138, 1349, 1420, 2276, 2698, 2845, 5396, 5690, 6745, 10811, 11380, 13490, 21622, 26980, 40399, 43244, 54055, 80798, 108110, 161596, 201995, 216220, 403990, 767581, 807980, 1535162, 3070324, 3837905, 7675810, 15351620]

約数ペア:

[(1, 15351620), (2, 7675810), (4, 3837905), (5, 3070324), (10, 1535162), (19, 807980), (20, 767581), (38, 403990), (71, 216220), (76, 201995), (95, 161596), (142, 108110), (190, 80798), (284, 54055), (355, 43244), (380, 40399), (569, 26980), (710, 21622), (1138, 13490), (1349, 11380), (1420, 10811), (2276, 6745), (2698, 5690), (2845, 5396)]