1291250896

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{39541}}^1$

素因数の和:39719

約数の個数: 40

約数和(自身を含む): 2711474024

約数和(自身を除く): 1420223128

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 157, 208, 314, 628, 1256, 2041, 2512, 4082, 8164, 16328, 32656, 39541, 79082, 158164, 316328, 514033, 632656, 1028066, 2056132, 4112264, 6207937, 8224528, 12415874, 24831748, 49663496, 80703181, 99326992, 161406362, 322812724, 645625448, 1291250896]

約数ペア:

[(1, 1291250896), (2, 645625448), (4, 322812724), (8, 161406362), (13, 99326992), (16, 80703181), (26, 49663496), (52, 24831748), (104, 12415874), (157, 8224528), (208, 6207937), (314, 4112264), (628, 2056132), (1256, 1028066), (2041, 632656), (2512, 514033), (4082, 316328), (8164, 158164), (16328, 79082), (32656, 39541)]