20381280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{42461}}^1$

素因数の和:42479

約数の個数: 48

約数和(自身を含む): 64202544

約数和(自身を除く): 43821264

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 42461, 84922, 127383, 169844, 212305, 254766, 339688, 424610, 509532, 636915, 679376, 849220, 1019064, 1273830, 1358752, 1698440, 2038128, 2547660, 3396880, 4076256, 5095320, 6793760, 10190640, 20381280]

約数ペア:

[(1, 20381280), (2, 10190640), (3, 6793760), (4, 5095320), (5, 4076256), (6, 3396880), (8, 2547660), (10, 2038128), (12, 1698440), (15, 1358752), (16, 1273830), (20, 1019064), (24, 849220), (30, 679376), (32, 636915), (40, 509532), (48, 424610), (60, 339688), (80, 254766), (96, 212305), (120, 169844), (160, 127383), (240, 84922), (480, 42461)]