78519420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{617}}^1$

素因数の和:740

約数の個数: 144

約数和(自身を含む): 275341248

約数和(自身を除く): 196821828

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 101, 105, 126, 140, 180, 202, 210, 252, 303, 315, 404, 420, 505, 606, 617, 630, 707, 909, 1010, 1212, 1234, 1260, 1414, 1515, 1818, 1851, 2020, 2121, 2468, 2828, 3030, 3085, 3535, 3636, 3702, 4242, 4319, 4545, 5553, 6060, 6170, 6363, 7070, 7404, 8484, 8638, 9090, 9255, 10605, 11106, 12340, 12726, 12957, 14140, 17276, 18180, 18510, 21210, 21595, 22212, 25452, 25914, 27765, 31815, 37020, 38871, 42420, 43190, 51828, 55530, 62317, 63630, 64785, 77742, 86380, 111060, 124634, 127260, 129570, 155484, 186951, 194355, 249268, 259140, 311585, 373902, 388710, 436219, 560853, 623170, 747804, 777420, 872438, 934755, 1121706, 1246340, 1308657, 1744876, 1869510, 2181095, 2243412, 2617314, 2804265, 3739020, 3925971, 4362190, 5234628, 5608530, 6543285, 7851942, 8724380, 11217060, 13086570, 15703884, 19629855, 26173140, 39259710, 78519420]

約数ペア:

[(1, 78519420), (2, 39259710), (3, 26173140), (4, 19629855), (5, 15703884), (6, 13086570), (7, 11217060), (9, 8724380), (10, 7851942), (12, 6543285), (14, 5608530), (15, 5234628), (18, 4362190), (20, 3925971), (21, 3739020), (28, 2804265), (30, 2617314), (35, 2243412), (36, 2181095), (42, 1869510), (45, 1744876), (60, 1308657), (63, 1246340), (70, 1121706), (84, 934755), (90, 872438), (101, 777420), (105, 747804), (126, 623170), (140, 560853), (180, 436219), (202, 388710), (210, 373902), (252, 311585), (303, 259140), (315, 249268), (404, 194355), (420, 186951), (505, 155484), (606, 129570), (617, 127260), (630, 124634), (707, 111060), (909, 86380), (1010, 77742), (1212, 64785), (1234, 63630), (1260, 62317), (1414, 55530), (1515, 51828), (1818, 43190), (1851, 42420), (2020, 38871), (2121, 37020), (2468, 31815), (2828, 27765), (3030, 25914), (3085, 25452), (3535, 22212), (3636, 21595), (3702, 21210), (4242, 18510), (4319, 18180), (4545, 17276), (5553, 14140), (6060, 12957), (6170, 12726), (6363, 12340), (7070, 11106), (7404, 10605), (8484, 9255), (8638, 9090)]