261569230

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{20743}}^1$

素因数の和:20860

約数の個数: 32

約数和(自身を含む): 512293824

約数和(自身を除く): 250724594

約数列:

[1, 2, 5, 10, 13, 26, 65, 97, 130, 194, 485, 970, 1261, 2522, 6305, 12610, 20743, 41486, 103715, 207430, 269659, 539318, 1348295, 2012071, 2696590, 4024142, 10060355, 20120710, 26156923, 52313846, 130784615, 261569230]

約数ペア:

[(1, 261569230), (2, 130784615), (5, 52313846), (10, 26156923), (13, 20120710), (26, 10060355), (65, 4024142), (97, 2696590), (130, 2012071), (194, 1348295), (485, 539318), (970, 269659), (1261, 207430), (2522, 103715), (6305, 41486), (12610, 20743)]