61988720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{18899}}^1$

素因数の和:18953

約数の個数: 40

約数和(自身を含む): 147646800

約数和(自身を除く): 85658080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 18899, 37798, 75596, 94495, 151192, 188990, 302384, 377980, 755960, 774859, 1511920, 1549718, 3099436, 3874295, 6198872, 7748590, 12397744, 15497180, 30994360, 61988720]

約数ペア:

[(1, 61988720), (2, 30994360), (4, 15497180), (5, 12397744), (8, 7748590), (10, 6198872), (16, 3874295), (20, 3099436), (40, 1549718), (41, 1511920), (80, 774859), (82, 755960), (164, 377980), (205, 302384), (328, 188990), (410, 151192), (656, 94495), (820, 75596), (1640, 37798), (3280, 18899)]