697408040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{2490743}}^1$

素因数の和:2490761

約数の個数: 32

約数和(自身を含む): 1793335680

約数和(自身を除く): 1095927640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 2490743, 4981486, 9962972, 12453715, 17435201, 19925944, 24907430, 34870402, 49814860, 69740804, 87176005, 99629720, 139481608, 174352010, 348704020, 697408040]

約数ペア:

[(1, 697408040), (2, 348704020), (4, 174352010), (5, 139481608), (7, 99629720), (8, 87176005), (10, 69740804), (14, 49814860), (20, 34870402), (28, 24907430), (35, 19925944), (40, 17435201), (56, 12453715), (70, 9962972), (140, 4981486), (280, 2490743)]