80868680

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{541}}^1$

素因数の和:690

約数の個数: 64

約数和(自身を含む): 189071280

約数和(自身を除く): 108202600

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 101, 148, 185, 202, 296, 370, 404, 505, 541, 740, 808, 1010, 1082, 1480, 2020, 2164, 2705, 3737, 4040, 4328, 5410, 7474, 10820, 14948, 18685, 20017, 21640, 29896, 37370, 40034, 54641, 74740, 80068, 100085, 109282, 149480, 160136, 200170, 218564, 273205, 400340, 437128, 546410, 800680, 1092820, 2021717, 2185640, 4043434, 8086868, 10108585, 16173736, 20217170, 40434340, 80868680]

約数ペア:

[(1, 80868680), (2, 40434340), (4, 20217170), (5, 16173736), (8, 10108585), (10, 8086868), (20, 4043434), (37, 2185640), (40, 2021717), (74, 1092820), (101, 800680), (148, 546410), (185, 437128), (202, 400340), (296, 273205), (370, 218564), (404, 200170), (505, 160136), (541, 149480), (740, 109282), (808, 100085), (1010, 80068), (1082, 74740), (1480, 54641), (2020, 40034), (2164, 37370), (2705, 29896), (3737, 21640), (4040, 20017), (4328, 18685), (5410, 14948), (7474, 10820)]