18564520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1879}}^1$

素因数の和:1922

約数の個数: 64

約数和(自身を含む): 47376000

約数和(自身を除く): 28811480

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1879, 1976, 2470, 3758, 4940, 7516, 9395, 9880, 15032, 18790, 24427, 35701, 37580, 48854, 71402, 75160, 97708, 122135, 142804, 178505, 195416, 244270, 285608, 357010, 464113, 488540, 714020, 928226, 977080, 1428040, 1856452, 2320565, 3712904, 4641130, 9282260, 18564520]

約数ペア:

[(1, 18564520), (2, 9282260), (4, 4641130), (5, 3712904), (8, 2320565), (10, 1856452), (13, 1428040), (19, 977080), (20, 928226), (26, 714020), (38, 488540), (40, 464113), (52, 357010), (65, 285608), (76, 244270), (95, 195416), (104, 178505), (130, 142804), (152, 122135), (190, 97708), (247, 75160), (260, 71402), (380, 48854), (494, 37580), (520, 35701), (760, 24427), (988, 18790), (1235, 15032), (1879, 9880), (1976, 9395), (2470, 7516), (3758, 4940)]