1989063760

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{671981}}^1$

素因数の和:672031

約数の個数: 40

約数和(自身を含む): 4749568776

約数和(自身を除く): 2760505016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 671981, 1343962, 2687924, 3359905, 5375848, 6719810, 10751696, 13439620, 24863297, 26879240, 49726594, 53758480, 99453188, 124316485, 198906376, 248632970, 397812752, 497265940, 994531880, 1989063760]

約数ペア:

[(1, 1989063760), (2, 994531880), (4, 497265940), (5, 397812752), (8, 248632970), (10, 198906376), (16, 124316485), (20, 99453188), (37, 53758480), (40, 49726594), (74, 26879240), (80, 24863297), (148, 13439620), (185, 10751696), (296, 6719810), (370, 5375848), (592, 3359905), (740, 2687924), (1480, 1343962), (2960, 671981)]