18159440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{919}}^1$

素因数の和:964

約数の個数: 80

約数和(自身を含む): 47913600

約数和(自身を除く): 29754160

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 919, 988, 1040, 1235, 1520, 1838, 1976, 2470, 3676, 3952, 4595, 4940, 7352, 9190, 9880, 11947, 14704, 17461, 18380, 19760, 23894, 34922, 36760, 47788, 59735, 69844, 73520, 87305, 95576, 119470, 139688, 174610, 191152, 226993, 238940, 279376, 349220, 453986, 477880, 698440, 907972, 955760, 1134965, 1396880, 1815944, 2269930, 3631888, 4539860, 9079720, 18159440]

約数ペア:

[(1, 18159440), (2, 9079720), (4, 4539860), (5, 3631888), (8, 2269930), (10, 1815944), (13, 1396880), (16, 1134965), (19, 955760), (20, 907972), (26, 698440), (38, 477880), (40, 453986), (52, 349220), (65, 279376), (76, 238940), (80, 226993), (95, 191152), (104, 174610), (130, 139688), (152, 119470), (190, 95576), (208, 87305), (247, 73520), (260, 69844), (304, 59735), (380, 47788), (494, 36760), (520, 34922), (760, 23894), (919, 19760), (988, 18380), (1040, 17461), (1235, 14704), (1520, 11947), (1838, 9880), (1976, 9190), (2470, 7352), (3676, 4940), (3952, 4595)]