81387660

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1356461}}^1$

素因数の和:1356473

約数の個数: 24

約数和(自身を含む): 227885616

約数和(自身を除く): 146497956

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1356461, 2712922, 4069383, 5425844, 6782305, 8138766, 13564610, 16277532, 20346915, 27129220, 40693830, 81387660]

約数ペア:

[(1, 81387660), (2, 40693830), (3, 27129220), (4, 20346915), (5, 16277532), (6, 13564610), (10, 8138766), (12, 6782305), (15, 5425844), (20, 4069383), (30, 2712922), (60, 1356461)]