20021280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{787}}^1$

素因数の和:858

約数の個数: 96

約数和(自身を含む): 64338624

約数和(自身を除く): 44317344

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 53, 60, 80, 96, 106, 120, 159, 160, 212, 240, 265, 318, 424, 480, 530, 636, 787, 795, 848, 1060, 1272, 1574, 1590, 1696, 2120, 2361, 2544, 3148, 3180, 3935, 4240, 4722, 5088, 6296, 6360, 7870, 8480, 9444, 11805, 12592, 12720, 15740, 18888, 23610, 25184, 25440, 31480, 37776, 41711, 47220, 62960, 75552, 83422, 94440, 125133, 125920, 166844, 188880, 208555, 250266, 333688, 377760, 417110, 500532, 625665, 667376, 834220, 1001064, 1251330, 1334752, 1668440, 2002128, 2502660, 3336880, 4004256, 5005320, 6673760, 10010640, 20021280]

約数ペア:

[(1, 20021280), (2, 10010640), (3, 6673760), (4, 5005320), (5, 4004256), (6, 3336880), (8, 2502660), (10, 2002128), (12, 1668440), (15, 1334752), (16, 1251330), (20, 1001064), (24, 834220), (30, 667376), (32, 625665), (40, 500532), (48, 417110), (53, 377760), (60, 333688), (80, 250266), (96, 208555), (106, 188880), (120, 166844), (159, 125920), (160, 125133), (212, 94440), (240, 83422), (265, 75552), (318, 62960), (424, 47220), (480, 41711), (530, 37776), (636, 31480), (787, 25440), (795, 25184), (848, 23610), (1060, 18888), (1272, 15740), (1574, 12720), (1590, 12592), (1696, 11805), (2120, 9444), (2361, 8480), (2544, 7870), (3148, 6360), (3180, 6296), (3935, 5088), (4240, 4722)]