20305116

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1009}}^1$

素因数の和:1075

約数の個数: 72

約数和(自身を含む): 56616560

約数和(自身を除く): 36311444

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 43, 52, 78, 86, 117, 129, 156, 172, 234, 258, 387, 468, 516, 559, 774, 1009, 1118, 1548, 1677, 2018, 2236, 3027, 3354, 4036, 5031, 6054, 6708, 9081, 10062, 12108, 13117, 18162, 20124, 26234, 36324, 39351, 43387, 52468, 78702, 86774, 118053, 130161, 157404, 173548, 236106, 260322, 390483, 472212, 520644, 564031, 780966, 1128062, 1561932, 1692093, 2256124, 3384186, 5076279, 6768372, 10152558, 20305116]

約数ペア:

[(1, 20305116), (2, 10152558), (3, 6768372), (4, 5076279), (6, 3384186), (9, 2256124), (12, 1692093), (13, 1561932), (18, 1128062), (26, 780966), (36, 564031), (39, 520644), (43, 472212), (52, 390483), (78, 260322), (86, 236106), (117, 173548), (129, 157404), (156, 130161), (172, 118053), (234, 86774), (258, 78702), (387, 52468), (468, 43387), (516, 39351), (559, 36324), (774, 26234), (1009, 20124), (1118, 18162), (1548, 13117), (1677, 12108), (2018, 10062), (2236, 9081), (3027, 6708), (3354, 6054), (4036, 5031)]