20033860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13009}}^1$

素因数の和:13036

約数の個数: 48

約数和(自身を含む): 52456320

約数和(自身を除く): 32422460

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 13009, 26018, 52036, 65045, 91063, 130090, 143099, 182126, 260180, 286198, 364252, 455315, 572396, 715495, 910630, 1001693, 1430990, 1821260, 2003386, 2861980, 4006772, 5008465, 10016930, 20033860]

約数ペア:

[(1, 20033860), (2, 10016930), (4, 5008465), (5, 4006772), (7, 2861980), (10, 2003386), (11, 1821260), (14, 1430990), (20, 1001693), (22, 910630), (28, 715495), (35, 572396), (44, 455315), (55, 364252), (70, 286198), (77, 260180), (110, 182126), (140, 143099), (154, 130090), (220, 91063), (308, 65045), (385, 52036), (770, 26018), (1540, 13009)]