20457980972

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{563}}^1\times {\mathrm{63527}}^1$

素因数の和:64118

約数の個数: 48

約数和(自身を含む): 42135835392

約数和(自身を除く): 21677854420

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 563, 572, 1126, 2252, 6193, 7319, 12386, 14638, 24772, 29276, 63527, 80509, 127054, 161018, 254108, 322036, 698797, 825851, 1397594, 1651702, 2795188, 3303404, 9084361, 18168722, 35765701, 36337444, 71531402, 143062804, 393422711, 464954113, 786845422, 929908226, 1573690844, 1859816452, 5114495243, 10228990486, 20457980972]

約数ペア:

[(1, 20457980972), (2, 10228990486), (4, 5114495243), (11, 1859816452), (13, 1573690844), (22, 929908226), (26, 786845422), (44, 464954113), (52, 393422711), (143, 143062804), (286, 71531402), (563, 36337444), (572, 35765701), (1126, 18168722), (2252, 9084361), (6193, 3303404), (7319, 2795188), (12386, 1651702), (14638, 1397594), (24772, 825851), (29276, 698797), (63527, 322036), (80509, 254108), (127054, 161018)]