19520560

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{103}}^2$

素因数の和:242

約数の個数: 60

約数和(自身を含む): 47822832

約数和(自身を除く): 28302272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 103, 115, 184, 206, 230, 368, 412, 460, 515, 824, 920, 1030, 1648, 1840, 2060, 2369, 4120, 4738, 8240, 9476, 10609, 11845, 18952, 21218, 23690, 37904, 42436, 47380, 53045, 84872, 94760, 106090, 169744, 189520, 212180, 244007, 424360, 488014, 848720, 976028, 1220035, 1952056, 2440070, 3904112, 4880140, 9760280, 19520560]

約数ペア:

[(1, 19520560), (2, 9760280), (4, 4880140), (5, 3904112), (8, 2440070), (10, 1952056), (16, 1220035), (20, 976028), (23, 848720), (40, 488014), (46, 424360), (80, 244007), (92, 212180), (103, 189520), (115, 169744), (184, 106090), (206, 94760), (230, 84872), (368, 53045), (412, 47380), (460, 42436), (515, 37904), (824, 23690), (920, 21218), (1030, 18952), (1648, 11845), (1840, 10609), (2060, 9476), (2369, 8240), (4120, 4738)]