90451790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1471}}^1$

素因数の和:1545

約数の個数: 64

約数和(自身を含む): 195858432

約数和(自身を除く): 105406642

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 43, 55, 65, 86, 110, 130, 143, 215, 286, 430, 473, 559, 715, 946, 1118, 1430, 1471, 2365, 2795, 2942, 4730, 5590, 6149, 7355, 12298, 14710, 16181, 19123, 30745, 32362, 38246, 61490, 63253, 80905, 95615, 126506, 161810, 191230, 210353, 316265, 420706, 632530, 695783, 822289, 1051765, 1391566, 1644578, 2103530, 3478915, 4111445, 6957830, 8222890, 9045179, 18090358, 45225895, 90451790]

約数ペア:

[(1, 90451790), (2, 45225895), (5, 18090358), (10, 9045179), (11, 8222890), (13, 6957830), (22, 4111445), (26, 3478915), (43, 2103530), (55, 1644578), (65, 1391566), (86, 1051765), (110, 822289), (130, 695783), (143, 632530), (215, 420706), (286, 316265), (430, 210353), (473, 191230), (559, 161810), (715, 126506), (946, 95615), (1118, 80905), (1430, 63253), (1471, 61490), (2365, 38246), (2795, 32362), (2942, 30745), (4730, 19123), (5590, 16181), (6149, 14710), (7355, 12298)]