81980740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{5749}}^1$

素因数の和:5812

約数の個数: 48

約数和(自身を含む): 185472000

約数和(自身を除く): 103491260

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 46, 62, 92, 115, 124, 155, 230, 310, 460, 620, 713, 1426, 2852, 3565, 5749, 7130, 11498, 14260, 22996, 28745, 57490, 114980, 132227, 178219, 264454, 356438, 528908, 661135, 712876, 891095, 1322270, 1782190, 2644540, 3564380, 4099037, 8198074, 16396148, 20495185, 40990370, 81980740]

約数ペア:

[(1, 81980740), (2, 40990370), (4, 20495185), (5, 16396148), (10, 8198074), (20, 4099037), (23, 3564380), (31, 2644540), (46, 1782190), (62, 1322270), (92, 891095), (115, 712876), (124, 661135), (155, 528908), (230, 356438), (310, 264454), (460, 178219), (620, 132227), (713, 114980), (1426, 57490), (2852, 28745), (3565, 22996), (5749, 14260), (7130, 11498)]