649116

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:115

約数の個数: 72

約数和(自身を含む): 1885520

約数和(自身を除く): 1236404

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 19, 26, 36, 38, 39, 52, 57, 73, 76, 78, 114, 117, 146, 156, 171, 219, 228, 234, 247, 292, 342, 438, 468, 494, 657, 684, 741, 876, 949, 988, 1314, 1387, 1482, 1898, 2223, 2628, 2774, 2847, 2964, 3796, 4161, 4446, 5548, 5694, 8322, 8541, 8892, 11388, 12483, 16644, 17082, 18031, 24966, 34164, 36062, 49932, 54093, 72124, 108186, 162279, 216372, 324558, 649116]

約数ペア:

[(1, 649116), (2, 324558), (3, 216372), (4, 162279), (6, 108186), (9, 72124), (12, 54093), (13, 49932), (18, 36062), (19, 34164), (26, 24966), (36, 18031), (38, 17082), (39, 16644), (52, 12483), (57, 11388), (73, 8892), (76, 8541), (78, 8322), (114, 5694), (117, 5548), (146, 4446), (156, 4161), (171, 3796), (219, 2964), (228, 2847), (234, 2774), (247, 2628), (292, 2223), (342, 1898), (438, 1482), (468, 1387), (494, 1314), (657, 988), (684, 949), (741, 876)]