77974020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4289}}^1$

素因数の和:4405

約数の個数: 72

約数和(自身を含む): 238918680

約数和(自身を除く): 160944660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 404, 505, 606, 909, 1010, 1212, 1515, 1818, 2020, 3030, 3636, 4289, 4545, 6060, 8578, 9090, 12867, 17156, 18180, 21445, 25734, 38601, 42890, 51468, 64335, 77202, 85780, 128670, 154404, 193005, 257340, 386010, 433189, 772020, 866378, 1299567, 1732756, 2165945, 2599134, 3898701, 4331890, 5198268, 6497835, 7797402, 8663780, 12995670, 15594804, 19493505, 25991340, 38987010, 77974020]

約数ペア:

[(1, 77974020), (2, 38987010), (3, 25991340), (4, 19493505), (5, 15594804), (6, 12995670), (9, 8663780), (10, 7797402), (12, 6497835), (15, 5198268), (18, 4331890), (20, 3898701), (30, 2599134), (36, 2165945), (45, 1732756), (60, 1299567), (90, 866378), (101, 772020), (180, 433189), (202, 386010), (303, 257340), (404, 193005), (505, 154404), (606, 128670), (909, 85780), (1010, 77202), (1212, 64335), (1515, 51468), (1818, 42890), (2020, 38601), (3030, 25734), (3636, 21445), (4289, 18180), (4545, 17156), (6060, 12867), (8578, 9090)]