81228724

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{3229}}^1$

素因数の和:3583

約数の個数: 24

約数和(自身を含む): 150130400

約数和(自身を除く): 68901676

約数列:

[1, 2, 4, 19, 38, 76, 331, 662, 1324, 3229, 6289, 6458, 12578, 12916, 25156, 61351, 122702, 245404, 1068799, 2137598, 4275196, 20307181, 40614362, 81228724]

約数ペア:

[(1, 81228724), (2, 40614362), (4, 20307181), (19, 4275196), (38, 2137598), (76, 1068799), (331, 245404), (662, 122702), (1324, 61351), (3229, 25156), (6289, 12916), (6458, 12578)]