20565527080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{727211}}^1$

素因数の和:727330

約数の個数: 64

約数和(自身を含む): 53406449280

約数和(自身を除く): 32840922200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 101, 140, 202, 280, 404, 505, 707, 808, 1010, 1414, 2020, 2828, 3535, 4040, 5656, 7070, 14140, 28280, 727211, 1454422, 2908844, 3636055, 5090477, 5817688, 7272110, 10180954, 14544220, 20361908, 25452385, 29088440, 40723816, 50904770, 73448311, 101809540, 146896622, 203619080, 293793244, 367241555, 514138177, 587586488, 734483110, 1028276354, 1468966220, 2056552708, 2570690885, 2937932440, 4113105416, 5141381770, 10282763540, 20565527080]

約数ペア:

[(1, 20565527080), (2, 10282763540), (4, 5141381770), (5, 4113105416), (7, 2937932440), (8, 2570690885), (10, 2056552708), (14, 1468966220), (20, 1028276354), (28, 734483110), (35, 587586488), (40, 514138177), (56, 367241555), (70, 293793244), (101, 203619080), (140, 146896622), (202, 101809540), (280, 73448311), (404, 50904770), (505, 40723816), (707, 29088440), (808, 25452385), (1010, 20361908), (1414, 14544220), (2020, 10180954), (2828, 7272110), (3535, 5817688), (4040, 5090477), (5656, 3636055), (7070, 2908844), (14140, 1454422), (28280, 727211)]