8720478

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{449}}^1$

素因数の和:553

約数の個数: 48

約数和(自身を含む): 20638800

約数和(自身を除く): 11918322

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 83, 117, 166, 234, 249, 449, 498, 747, 898, 1079, 1347, 1494, 2158, 2694, 3237, 4041, 5837, 6474, 8082, 9711, 11674, 17511, 19422, 35022, 37267, 52533, 74534, 105066, 111801, 223602, 335403, 484471, 670806, 968942, 1453413, 2906826, 4360239, 8720478]

約数ペア:

[(1, 8720478), (2, 4360239), (3, 2906826), (6, 1453413), (9, 968942), (13, 670806), (18, 484471), (26, 335403), (39, 223602), (78, 111801), (83, 105066), (117, 74534), (166, 52533), (234, 37267), (249, 35022), (449, 19422), (498, 17511), (747, 11674), (898, 9711), (1079, 8082), (1347, 6474), (1494, 5837), (2158, 4041), (2694, 3237)]