18876260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{919}}^1$

素因数の和:1020

約数の個数: 48

約数和(自身を含む): 43276800

約数和(自身を除く): 24400540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 919, 1027, 1580, 1838, 2054, 3676, 4108, 4595, 5135, 9190, 10270, 11947, 18380, 20540, 23894, 47788, 59735, 72601, 119470, 145202, 238940, 290404, 363005, 726010, 943813, 1452020, 1887626, 3775252, 4719065, 9438130, 18876260]

約数ペア:

[(1, 18876260), (2, 9438130), (4, 4719065), (5, 3775252), (10, 1887626), (13, 1452020), (20, 943813), (26, 726010), (52, 363005), (65, 290404), (79, 238940), (130, 145202), (158, 119470), (260, 72601), (316, 59735), (395, 47788), (790, 23894), (919, 20540), (1027, 18380), (1580, 11947), (1838, 10270), (2054, 9190), (3676, 5135), (4108, 4595)]