128220460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{2531}}^1$

素因数の和:2706

約数の個数: 48

約数和(自身を含む): 287128800

約数和(自身を除く): 158908340

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 149, 170, 298, 340, 596, 745, 1490, 2531, 2533, 2980, 5062, 5066, 10124, 10132, 12655, 12665, 25310, 25330, 43027, 50620, 50660, 86054, 172108, 215135, 377119, 430270, 754238, 860540, 1508476, 1885595, 3771190, 6411023, 7542380, 12822046, 25644092, 32055115, 64110230, 128220460]

約数ペア:

[(1, 128220460), (2, 64110230), (4, 32055115), (5, 25644092), (10, 12822046), (17, 7542380), (20, 6411023), (34, 3771190), (68, 1885595), (85, 1508476), (149, 860540), (170, 754238), (298, 430270), (340, 377119), (596, 215135), (745, 172108), (1490, 86054), (2531, 50660), (2533, 50620), (2980, 43027), (5062, 25330), (5066, 25310), (10124, 12665), (10132, 12655)]