31396995

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{491}}^1$

素因数の和:545

約数の個数: 72

約数和(自身を含む): 65622960

約数和(自身を除く): 34225965

約数列:

[1, 3, 5, 7, 9, 15, 21, 29, 35, 45, 49, 63, 87, 105, 145, 147, 203, 245, 261, 315, 435, 441, 491, 609, 735, 1015, 1305, 1421, 1473, 1827, 2205, 2455, 3045, 3437, 4263, 4419, 7105, 7365, 9135, 10311, 12789, 14239, 17185, 21315, 22095, 24059, 30933, 42717, 51555, 63945, 71195, 72177, 99673, 120295, 128151, 154665, 213585, 216531, 299019, 360885, 498365, 640755, 697711, 897057, 1082655, 1495095, 2093133, 3488555, 4485285, 6279399, 10465665, 31396995]

約数ペア:

[(1, 31396995), (3, 10465665), (5, 6279399), (7, 4485285), (9, 3488555), (15, 2093133), (21, 1495095), (29, 1082655), (35, 897057), (45, 697711), (49, 640755), (63, 498365), (87, 360885), (105, 299019), (145, 216531), (147, 213585), (203, 154665), (245, 128151), (261, 120295), (315, 99673), (435, 72177), (441, 71195), (491, 63945), (609, 51555), (735, 42717), (1015, 30933), (1305, 24059), (1421, 22095), (1473, 21315), (1827, 17185), (2205, 14239), (2455, 12789), (3045, 10311), (3437, 9135), (4263, 7365), (4419, 7105)]