21992588360

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{401}}^1\times {\mathrm{37057}}^1$

素因数の和:37506

約数の個数: 64

約数和(自身を含む): 50948820720

約数和(自身を除く): 28956232360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 401, 740, 802, 1480, 1604, 2005, 3208, 4010, 8020, 14837, 16040, 29674, 37057, 59348, 74114, 74185, 118696, 148228, 148370, 185285, 296456, 296740, 370570, 593480, 741140, 1371109, 1482280, 2742218, 5484436, 6855545, 10968872, 13711090, 14859857, 27422180, 29719714, 54844360, 59439428, 74299285, 118878856, 148598570, 297197140, 549814709, 594394280, 1099629418, 2199258836, 2749073545, 4398517672, 5498147090, 10996294180, 21992588360]

約数ペア:

[(1, 21992588360), (2, 10996294180), (4, 5498147090), (5, 4398517672), (8, 2749073545), (10, 2199258836), (20, 1099629418), (37, 594394280), (40, 549814709), (74, 297197140), (148, 148598570), (185, 118878856), (296, 74299285), (370, 59439428), (401, 54844360), (740, 29719714), (802, 27422180), (1480, 14859857), (1604, 13711090), (2005, 10968872), (3208, 6855545), (4010, 5484436), (8020, 2742218), (14837, 1482280), (16040, 1371109), (29674, 741140), (37057, 593480), (59348, 370570), (74114, 296740), (74185, 296456), (118696, 185285), (148228, 148370)]