20280304

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1889}}^1$

素因数の和:1969

約数の個数: 40

約数和(自身を含む): 43590960

約数和(自身を除く): 23310656

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 61, 88, 122, 176, 244, 488, 671, 976, 1342, 1889, 2684, 3778, 5368, 7556, 10736, 15112, 20779, 30224, 41558, 83116, 115229, 166232, 230458, 332464, 460916, 921832, 1267519, 1843664, 2535038, 5070076, 10140152, 20280304]

約数ペア:

[(1, 20280304), (2, 10140152), (4, 5070076), (8, 2535038), (11, 1843664), (16, 1267519), (22, 921832), (44, 460916), (61, 332464), (88, 230458), (122, 166232), (176, 115229), (244, 83116), (488, 41558), (671, 30224), (976, 20779), (1342, 15112), (1889, 10736), (2684, 7556), (3778, 5368)]