9919520

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:298

約数の個数: 96

約数和(自身を含む): 26671680

約数和(自身を除く): 16752160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 160, 190, 208, 247, 251, 260, 304, 380, 416, 494, 502, 520, 608, 760, 988, 1004, 1040, 1235, 1255, 1520, 1976, 2008, 2080, 2470, 2510, 3040, 3263, 3952, 4016, 4769, 4940, 5020, 6526, 7904, 8032, 9538, 9880, 10040, 13052, 16315, 19076, 19760, 20080, 23845, 26104, 32630, 38152, 39520, 40160, 47690, 52208, 61997, 65260, 76304, 95380, 104416, 123994, 130520, 152608, 190760, 247988, 261040, 309985, 381520, 495976, 522080, 619970, 763040, 991952, 1239940, 1983904, 2479880, 4959760, 9919520]

約数ペア:

[(1, 9919520), (2, 4959760), (4, 2479880), (5, 1983904), (8, 1239940), (10, 991952), (13, 763040), (16, 619970), (19, 522080), (20, 495976), (26, 381520), (32, 309985), (38, 261040), (40, 247988), (52, 190760), (65, 152608), (76, 130520), (80, 123994), (95, 104416), (104, 95380), (130, 76304), (152, 65260), (160, 61997), (190, 52208), (208, 47690), (247, 40160), (251, 39520), (260, 38152), (304, 32630), (380, 26104), (416, 23845), (494, 20080), (502, 19760), (520, 19076), (608, 16315), (760, 13052), (988, 10040), (1004, 9880), (1040, 9538), (1235, 8032), (1255, 7904), (1520, 6526), (1976, 5020), (2008, 4940), (2080, 4769), (2470, 4016), (2510, 3952), (3040, 3263)]