20726760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{2081}}^1$

素因数の和:2178

約数の個数: 64

約数和(自身を含む): 62959680

約数和(自身を除く): 42232920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 83, 120, 166, 249, 332, 415, 498, 664, 830, 996, 1245, 1660, 1992, 2081, 2490, 3320, 4162, 4980, 6243, 8324, 9960, 10405, 12486, 16648, 20810, 24972, 31215, 41620, 49944, 62430, 83240, 124860, 172723, 249720, 345446, 518169, 690892, 863615, 1036338, 1381784, 1727230, 2072676, 2590845, 3454460, 4145352, 5181690, 6908920, 10363380, 20726760]

約数ペア:

[(1, 20726760), (2, 10363380), (3, 6908920), (4, 5181690), (5, 4145352), (6, 3454460), (8, 2590845), (10, 2072676), (12, 1727230), (15, 1381784), (20, 1036338), (24, 863615), (30, 690892), (40, 518169), (60, 345446), (83, 249720), (120, 172723), (166, 124860), (249, 83240), (332, 62430), (415, 49944), (498, 41620), (664, 31215), (830, 24972), (996, 20810), (1245, 16648), (1660, 12486), (1992, 10405), (2081, 9960), (2490, 8324), (3320, 6243), (4162, 4980)]