280729930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{35401}}^1$

素因数の和:35482

約数の個数: 32

約数和(自身を含む): 553120848

約数和(自身を除く): 272390918

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 122, 130, 305, 610, 793, 1586, 3965, 7930, 35401, 70802, 177005, 354010, 460213, 920426, 2159461, 2301065, 4318922, 4602130, 10797305, 21594610, 28072993, 56145986, 140364965, 280729930]

約数ペア:

[(1, 280729930), (2, 140364965), (5, 56145986), (10, 28072993), (13, 21594610), (26, 10797305), (61, 4602130), (65, 4318922), (122, 2301065), (130, 2159461), (305, 920426), (610, 460213), (793, 354010), (1586, 177005), (3965, 70802), (7930, 35401)]