19839040

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:300

約数の個数: 112

約数和(自身を含む): 53766720

約数和(自身を除く): 33927680

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, 251, 260, 304, 320, 380, 416, 494, 502, 520, 608, 760, 832, 988, 1004, 1040, 1216, 1235, 1255, 1520, 1976, 2008, 2080, 2470, 2510, 3040, 3263, 3952, 4016, 4160, 4769, 4940, 5020, 6080, 6526, 7904, 8032, 9538, 9880, 10040, 13052, 15808, 16064, 16315, 19076, 19760, 20080, 23845, 26104, 32630, 38152, 39520, 40160, 47690, 52208, 61997, 65260, 76304, 79040, 80320, 95380, 104416, 123994, 130520, 152608, 190760, 208832, 247988, 261040, 305216, 309985, 381520, 495976, 522080, 619970, 763040, 991952, 1044160, 1239940, 1526080, 1983904, 2479880, 3967808, 4959760, 9919520, 19839040]

約数ペア:

[(1, 19839040), (2, 9919520), (4, 4959760), (5, 3967808), (8, 2479880), (10, 1983904), (13, 1526080), (16, 1239940), (19, 1044160), (20, 991952), (26, 763040), (32, 619970), (38, 522080), (40, 495976), (52, 381520), (64, 309985), (65, 305216), (76, 261040), (80, 247988), (95, 208832), (104, 190760), (130, 152608), (152, 130520), (160, 123994), (190, 104416), (208, 95380), (247, 80320), (251, 79040), (260, 76304), (304, 65260), (320, 61997), (380, 52208), (416, 47690), (494, 40160), (502, 39520), (520, 38152), (608, 32630), (760, 26104), (832, 23845), (988, 20080), (1004, 19760), (1040, 19076), (1216, 16315), (1235, 16064), (1255, 15808), (1520, 13052), (1976, 10040), (2008, 9880), (2080, 9538), (2470, 8032), (2510, 7904), (3040, 6526), (3263, 6080), (3952, 5020), (4016, 4940), (4160, 4769)]