9780880

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1187}}^1$

素因数の和:1303

約数の個数: 40

約数和(自身を含む): 22980672

約数和(自身を除く): 13199792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 206, 412, 515, 824, 1030, 1187, 1648, 2060, 2374, 4120, 4748, 5935, 8240, 9496, 11870, 18992, 23740, 47480, 94960, 122261, 244522, 489044, 611305, 978088, 1222610, 1956176, 2445220, 4890440, 9780880]

約数ペア:

[(1, 9780880), (2, 4890440), (4, 2445220), (5, 1956176), (8, 1222610), (10, 978088), (16, 611305), (20, 489044), (40, 244522), (80, 122261), (103, 94960), (206, 47480), (412, 23740), (515, 18992), (824, 11870), (1030, 9496), (1187, 8240), (1648, 5935), (2060, 4748), (2374, 4120)]