1640761460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{371213}}^1$

素因数の和:371252

約数の個数: 48

約数和(自身を含む): 3928928976

約数和(自身を除く): 2288167516

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 371213, 742426, 1484852, 1856065, 3712130, 4825769, 6310621, 7424260, 9651538, 12621242, 19303076, 24128845, 25242484, 31553105, 48257690, 63106210, 82038073, 96515380, 126212420, 164076146, 328152292, 410190365, 820380730, 1640761460]

約数ペア:

[(1, 1640761460), (2, 820380730), (4, 410190365), (5, 328152292), (10, 164076146), (13, 126212420), (17, 96515380), (20, 82038073), (26, 63106210), (34, 48257690), (52, 31553105), (65, 25242484), (68, 24128845), (85, 19303076), (130, 12621242), (170, 9651538), (221, 7424260), (260, 6310621), (340, 4825769), (442, 3712130), (884, 1856065), (1105, 1484852), (2210, 742426), (4420, 371213)]