20459220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1231}}^1$

素因数の和:1520

約数の個数: 48

約数和(自身を含む): 57539328

約数和(自身を除く): 37080108

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 277, 554, 831, 1108, 1231, 1385, 1662, 2462, 2770, 3324, 3693, 4155, 4924, 5540, 6155, 7386, 8310, 12310, 14772, 16620, 18465, 24620, 36930, 73860, 340987, 681974, 1022961, 1363948, 1704935, 2045922, 3409870, 4091844, 5114805, 6819740, 10229610, 20459220]

約数ペア:

[(1, 20459220), (2, 10229610), (3, 6819740), (4, 5114805), (5, 4091844), (6, 3409870), (10, 2045922), (12, 1704935), (15, 1363948), (20, 1022961), (30, 681974), (60, 340987), (277, 73860), (554, 36930), (831, 24620), (1108, 18465), (1231, 16620), (1385, 14772), (1662, 12310), (2462, 8310), (2770, 7386), (3324, 6155), (3693, 5540), (4155, 4924)]