81639090

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7753}}^1$

素因数の和:7785

約数の個数: 80

約数和(自身を含む): 236434968

約数和(自身を除く): 154795878

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 81, 90, 117, 130, 135, 162, 195, 234, 270, 351, 390, 405, 585, 702, 810, 1053, 1170, 1755, 2106, 3510, 5265, 7753, 10530, 15506, 23259, 38765, 46518, 69777, 77530, 100789, 116295, 139554, 201578, 209331, 232590, 302367, 348885, 418662, 503945, 604734, 627993, 697770, 907101, 1007890, 1046655, 1255986, 1511835, 1814202, 2093310, 2721303, 3023670, 3139965, 4535505, 5442606, 6279930, 8163909, 9071010, 13606515, 16327818, 27213030, 40819545, 81639090]

約数ペア:

[(1, 81639090), (2, 40819545), (3, 27213030), (5, 16327818), (6, 13606515), (9, 9071010), (10, 8163909), (13, 6279930), (15, 5442606), (18, 4535505), (26, 3139965), (27, 3023670), (30, 2721303), (39, 2093310), (45, 1814202), (54, 1511835), (65, 1255986), (78, 1046655), (81, 1007890), (90, 907101), (117, 697770), (130, 627993), (135, 604734), (162, 503945), (195, 418662), (234, 348885), (270, 302367), (351, 232590), (390, 209331), (405, 201578), (585, 139554), (702, 116295), (810, 100789), (1053, 77530), (1170, 69777), (1755, 46518), (2106, 38765), (3510, 23259), (5265, 15506), (7753, 10530)]