127931720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{456899}}^1$

素因数の和:456917

約数の個数: 32

約数和(自身を含む): 328968000

約数和(自身を除く): 201036280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 456899, 913798, 1827596, 2284495, 3198293, 3655192, 4568990, 6396586, 9137980, 12793172, 15991465, 18275960, 25586344, 31982930, 63965860, 127931720]

約数ペア:

[(1, 127931720), (2, 63965860), (4, 31982930), (5, 25586344), (7, 18275960), (8, 15991465), (10, 12793172), (14, 9137980), (20, 6396586), (28, 4568990), (35, 3655192), (40, 3198293), (56, 2284495), (70, 1827596), (140, 913798), (280, 456899)]