28916680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55609}}^1$

素因数の和:55633

約数の個数: 32

約数和(自身を含む): 70068600

約数和(自身を除く): 41151920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 55609, 111218, 222436, 278045, 444872, 556090, 722917, 1112180, 1445834, 2224360, 2891668, 3614585, 5783336, 7229170, 14458340, 28916680]

約数ペア:

[(1, 28916680), (2, 14458340), (4, 7229170), (5, 5783336), (8, 3614585), (10, 2891668), (13, 2224360), (20, 1445834), (26, 1112180), (40, 722917), (52, 556090), (65, 444872), (104, 278045), (130, 222436), (260, 111218), (520, 55609)]