215599280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{207307}}^1$

素因数の和:207333

約数の個数: 40

約数和(自身を含む): 539830032

約数和(自身を除く): 324230752

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 207307, 414614, 829228, 1036535, 1658456, 2073070, 2694991, 3316912, 4146140, 5389982, 8292280, 10779964, 13474955, 16584560, 21559928, 26949910, 43119856, 53899820, 107799640, 215599280]

約数ペア:

[(1, 215599280), (2, 107799640), (4, 53899820), (5, 43119856), (8, 26949910), (10, 21559928), (13, 16584560), (16, 13474955), (20, 10779964), (26, 8292280), (40, 5389982), (52, 4146140), (65, 3316912), (80, 2694991), (104, 2073070), (130, 1658456), (208, 1036535), (260, 829228), (520, 414614), (1040, 207307)]