20806798400

素因数分解:

$2^6\times 5^2\times {\mathrm{59}}^1\times {\mathrm{220411}}^1$

素因数の和:220492

約数の個数: 84

約数和(自身を含む): 52065722640

約数和(自身を除く): 31258924240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 59, 64, 80, 100, 118, 160, 200, 236, 295, 320, 400, 472, 590, 800, 944, 1180, 1475, 1600, 1888, 2360, 2950, 3776, 4720, 5900, 9440, 11800, 18880, 23600, 47200, 94400, 220411, 440822, 881644, 1102055, 1763288, 2204110, 3526576, 4408220, 5510275, 7053152, 8816440, 11020550, 13004249, 14106304, 17632880, 22041100, 26008498, 35265760, 44082200, 52016996, 65021245, 70531520, 88164400, 104033992, 130042490, 176328800, 208067984, 260084980, 325106225, 352657600, 416135968, 520169960, 650212450, 832271936, 1040339920, 1300424900, 2080679840, 2600849800, 4161359680, 5201699600, 10403399200, 20806798400]

約数ペア:

[(1, 20806798400), (2, 10403399200), (4, 5201699600), (5, 4161359680), (8, 2600849800), (10, 2080679840), (16, 1300424900), (20, 1040339920), (25, 832271936), (32, 650212450), (40, 520169960), (50, 416135968), (59, 352657600), (64, 325106225), (80, 260084980), (100, 208067984), (118, 176328800), (160, 130042490), (200, 104033992), (236, 88164400), (295, 70531520), (320, 65021245), (400, 52016996), (472, 44082200), (590, 35265760), (800, 26008498), (944, 22041100), (1180, 17632880), (1475, 14106304), (1600, 13004249), (1888, 11020550), (2360, 8816440), (2950, 7053152), (3776, 5510275), (4720, 4408220), (5900, 3526576), (9440, 2204110), (11800, 1763288), (18880, 1102055), (23600, 881644), (47200, 440822), (94400, 220411)]