78155210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{2143}}^1$

素因数の和:2678

約数の個数: 32

約数和(自身を含む): 161160192

約数和(自身を除く): 83004982

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 521, 1042, 2143, 2605, 3647, 4286, 5210, 7294, 10715, 15001, 18235, 21430, 30002, 36470, 75005, 150010, 1116503, 2233006, 5582515, 7815521, 11165030, 15631042, 39077605, 78155210]

約数ペア:

[(1, 78155210), (2, 39077605), (5, 15631042), (7, 11165030), (10, 7815521), (14, 5582515), (35, 2233006), (70, 1116503), (521, 150010), (1042, 75005), (2143, 36470), (2605, 30002), (3647, 21430), (4286, 18235), (5210, 15001), (7294, 10715)]