1431640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{5113}}^1$

素因数の和:5131

約数の個数: 32

約数和(自身を含む): 3682080

約数和(自身を除く): 2250440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 5113, 10226, 20452, 25565, 35791, 40904, 51130, 71582, 102260, 143164, 178955, 204520, 286328, 357910, 715820, 1431640]

約数ペア:

[(1, 1431640), (2, 715820), (4, 357910), (5, 286328), (7, 204520), (8, 178955), (10, 143164), (14, 102260), (20, 71582), (28, 51130), (35, 40904), (40, 35791), (56, 25565), (70, 20452), (140, 10226), (280, 5113)]