61621360

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{18787}}^1$

素因数の和:18841

約数の個数: 40

約数和(自身を含む): 146771856

約数和(自身を除く): 85150496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 18787, 37574, 75148, 93935, 150296, 187870, 300592, 375740, 751480, 770267, 1502960, 1540534, 3081068, 3851335, 6162136, 7702670, 12324272, 15405340, 30810680, 61621360]

約数ペア:

[(1, 61621360), (2, 30810680), (4, 15405340), (5, 12324272), (8, 7702670), (10, 6162136), (16, 3851335), (20, 3081068), (40, 1540534), (41, 1502960), (80, 770267), (82, 751480), (164, 375740), (205, 300592), (328, 187870), (410, 150296), (656, 93935), (820, 75148), (1640, 37574), (3280, 18787)]