20343672920

素因数分解:

$2^3\times 5^1\times {\mathrm{28687}}^1\times {\mathrm{17729}}^1$

素因数の和:46427

約数の個数: 32

約数和(自身を含む): 45777441600

約数和(自身を除く): 25433768680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 17729, 28687, 35458, 57374, 70916, 88645, 114748, 141832, 143435, 177290, 229496, 286870, 354580, 573740, 709160, 1147480, 508591823, 1017183646, 2034367292, 2542959115, 4068734584, 5085918230, 10171836460, 20343672920]

約数ペア:

[(1, 20343672920), (2, 10171836460), (4, 5085918230), (5, 4068734584), (8, 2542959115), (10, 2034367292), (20, 1017183646), (40, 508591823), (17729, 1147480), (28687, 709160), (35458, 573740), (57374, 354580), (70916, 286870), (88645, 229496), (114748, 177290), (141832, 143435)]