1919840

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1$

素因数の和:112

約数の個数: 72

約数和(自身を含む): 4980528

約数和(自身を除く): 3060688

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 71, 80, 104, 130, 142, 160, 169, 208, 260, 284, 338, 355, 416, 520, 568, 676, 710, 845, 923, 1040, 1136, 1352, 1420, 1690, 1846, 2080, 2272, 2704, 2840, 3380, 3692, 4615, 5408, 5680, 6760, 7384, 9230, 11360, 11999, 13520, 14768, 18460, 23998, 27040, 29536, 36920, 47996, 59995, 73840, 95992, 119990, 147680, 191984, 239980, 383968, 479960, 959920, 1919840]

約数ペア:

[(1, 1919840), (2, 959920), (4, 479960), (5, 383968), (8, 239980), (10, 191984), (13, 147680), (16, 119990), (20, 95992), (26, 73840), (32, 59995), (40, 47996), (52, 36920), (65, 29536), (71, 27040), (80, 23998), (104, 18460), (130, 14768), (142, 13520), (160, 11999), (169, 11360), (208, 9230), (260, 7384), (284, 6760), (338, 5680), (355, 5408), (416, 4615), (520, 3692), (568, 3380), (676, 2840), (710, 2704), (845, 2272), (923, 2080), (1040, 1846), (1136, 1690), (1352, 1420)]