20171505890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{404969}}^1$

素因数の和:405286

約数の個数: 32

約数和(自身を含む): 38575822320

約数和(自身を除く): 18404316430

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 293, 586, 1465, 2930, 4981, 9962, 24905, 49810, 404969, 809938, 2024845, 4049690, 6884473, 13768946, 34422365, 68844730, 118655917, 237311834, 593279585, 1186559170, 2017150589, 4034301178, 10085752945, 20171505890]

約数ペア:

[(1, 20171505890), (2, 10085752945), (5, 4034301178), (10, 2017150589), (17, 1186559170), (34, 593279585), (85, 237311834), (170, 118655917), (293, 68844730), (586, 34422365), (1465, 13768946), (2930, 6884473), (4981, 4049690), (9962, 2024845), (24905, 809938), (49810, 404969)]