21894080

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1$

素因数の和:326

約数の個数: 112

約数和(自身を含む): 59314080

約数和(自身を除く): 37420000

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 64, 65, 76, 80, 95, 104, 130, 152, 160, 190, 208, 247, 260, 277, 304, 320, 380, 416, 494, 520, 554, 608, 760, 832, 988, 1040, 1108, 1216, 1235, 1385, 1520, 1976, 2080, 2216, 2470, 2770, 3040, 3601, 3952, 4160, 4432, 4940, 5263, 5540, 6080, 7202, 7904, 8864, 9880, 10526, 11080, 14404, 15808, 17728, 18005, 19760, 21052, 22160, 26315, 28808, 36010, 39520, 42104, 44320, 52630, 57616, 68419, 72020, 79040, 84208, 88640, 105260, 115232, 136838, 144040, 168416, 210520, 230464, 273676, 288080, 336832, 342095, 421040, 547352, 576160, 684190, 842080, 1094704, 1152320, 1368380, 1684160, 2189408, 2736760, 4378816, 5473520, 10947040, 21894080]

約数ペア:

[(1, 21894080), (2, 10947040), (4, 5473520), (5, 4378816), (8, 2736760), (10, 2189408), (13, 1684160), (16, 1368380), (19, 1152320), (20, 1094704), (26, 842080), (32, 684190), (38, 576160), (40, 547352), (52, 421040), (64, 342095), (65, 336832), (76, 288080), (80, 273676), (95, 230464), (104, 210520), (130, 168416), (152, 144040), (160, 136838), (190, 115232), (208, 105260), (247, 88640), (260, 84208), (277, 79040), (304, 72020), (320, 68419), (380, 57616), (416, 52630), (494, 44320), (520, 42104), (554, 39520), (608, 36010), (760, 28808), (832, 26315), (988, 22160), (1040, 21052), (1108, 19760), (1216, 18005), (1235, 17728), (1385, 15808), (1520, 14404), (1976, 11080), (2080, 10526), (2216, 9880), (2470, 8864), (2770, 7904), (3040, 7202), (3601, 6080), (3952, 5540), (4160, 5263), (4432, 4940)]