20401608

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{373}}^1$

素因数の和:478

約数の個数: 64

約数和(自身を含む): 53317440

約数和(自身を除く): 32915832

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 53, 86, 106, 129, 159, 172, 212, 258, 318, 344, 373, 424, 516, 636, 746, 1032, 1119, 1272, 1492, 2238, 2279, 2984, 4476, 4558, 6837, 8952, 9116, 13674, 16039, 18232, 19769, 27348, 32078, 39538, 48117, 54696, 59307, 64156, 79076, 96234, 118614, 128312, 158152, 192468, 237228, 384936, 474456, 850067, 1700134, 2550201, 3400268, 5100402, 6800536, 10200804, 20401608]

約数ペア:

[(1, 20401608), (2, 10200804), (3, 6800536), (4, 5100402), (6, 3400268), (8, 2550201), (12, 1700134), (24, 850067), (43, 474456), (53, 384936), (86, 237228), (106, 192468), (129, 158152), (159, 128312), (172, 118614), (212, 96234), (258, 79076), (318, 64156), (344, 59307), (373, 54696), (424, 48117), (516, 39538), (636, 32078), (746, 27348), (1032, 19769), (1119, 18232), (1272, 16039), (1492, 13674), (2238, 9116), (2279, 8952), (2984, 6837), (4476, 4558)]