65450120

素因数分解:

$2^3\times 5^1\times {\mathrm{821}}^1\times {\mathrm{1993}}^1$

素因数の和:2825

約数の個数: 32

約数和(自身を含む): 147516120

約数和(自身を除く): 82066000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 821, 1642, 1993, 3284, 3986, 4105, 6568, 7972, 8210, 9965, 15944, 16420, 19930, 32840, 39860, 79720, 1636253, 3272506, 6545012, 8181265, 13090024, 16362530, 32725060, 65450120]

約数ペア:

[(1, 65450120), (2, 32725060), (4, 16362530), (5, 13090024), (8, 8181265), (10, 6545012), (20, 3272506), (40, 1636253), (821, 79720), (1642, 39860), (1993, 32840), (3284, 19930), (3986, 16420), (4105, 15944), (6568, 9965), (7972, 8210)]