20508733455

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{26513}}^1$

素因数の和:26720

約数の個数: 64

約数和(自身を含む): 38485601280

約数和(自身を除く): 17976867825

約数列:

[1, 3, 5, 7, 15, 21, 35, 53, 105, 139, 159, 265, 371, 417, 695, 795, 973, 1113, 1855, 2085, 2919, 4865, 5565, 7367, 14595, 22101, 26513, 36835, 51569, 79539, 110505, 132565, 154707, 185591, 257845, 397695, 556773, 773535, 927955, 1405189, 2783865, 3685307, 4215567, 7025945, 9836323, 11055921, 18426535, 21077835, 25797149, 29508969, 49181615, 55279605, 77391447, 128985745, 147544845, 195321271, 386957235, 585963813, 976606355, 1367248897, 2929819065, 4101746691, 6836244485, 20508733455]

約数ペア:

[(1, 20508733455), (3, 6836244485), (5, 4101746691), (7, 2929819065), (15, 1367248897), (21, 976606355), (35, 585963813), (53, 386957235), (105, 195321271), (139, 147544845), (159, 128985745), (265, 77391447), (371, 55279605), (417, 49181615), (695, 29508969), (795, 25797149), (973, 21077835), (1113, 18426535), (1855, 11055921), (2085, 9836323), (2919, 7025945), (4865, 4215567), (5565, 3685307), (7367, 2783865), (14595, 1405189), (22101, 927955), (26513, 773535), (36835, 556773), (51569, 397695), (79539, 257845), (110505, 185591), (132565, 154707)]