64637740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:307

約数の個数: 72

約数和(自身を含む): 147610512

約数和(自身を除く): 82972772

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 53, 68, 85, 106, 170, 211, 212, 265, 289, 340, 422, 530, 578, 844, 901, 1055, 1060, 1156, 1445, 1802, 2110, 2890, 3587, 3604, 4220, 4505, 5780, 7174, 9010, 11183, 14348, 15317, 17935, 18020, 22366, 30634, 35870, 44732, 55915, 60979, 61268, 71740, 76585, 111830, 121958, 153170, 190111, 223660, 243916, 304895, 306340, 380222, 609790, 760444, 950555, 1219580, 1901110, 3231887, 3802220, 6463774, 12927548, 16159435, 32318870, 64637740]

約数ペア:

[(1, 64637740), (2, 32318870), (4, 16159435), (5, 12927548), (10, 6463774), (17, 3802220), (20, 3231887), (34, 1901110), (53, 1219580), (68, 950555), (85, 760444), (106, 609790), (170, 380222), (211, 306340), (212, 304895), (265, 243916), (289, 223660), (340, 190111), (422, 153170), (530, 121958), (578, 111830), (844, 76585), (901, 71740), (1055, 61268), (1060, 60979), (1156, 55915), (1445, 44732), (1802, 35870), (2110, 30634), (2890, 22366), (3587, 18020), (3604, 17935), (4220, 15317), (4505, 14348), (5780, 11183), (7174, 9010)]