1288492790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{521657}}^1$

素因数の和:521696

約数の個数: 32

約数和(自身を含む): 2629156320

約数和(自身を除く): 1340663530

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 521657, 1043314, 2608285, 5216570, 6781541, 9911483, 13563082, 19822966, 33907705, 49557415, 67815410, 99114830, 128849279, 257698558, 644246395, 1288492790]

約数ペア:

[(1, 1288492790), (2, 644246395), (5, 257698558), (10, 128849279), (13, 99114830), (19, 67815410), (26, 49557415), (38, 33907705), (65, 19822966), (95, 13563082), (130, 9911483), (190, 6781541), (247, 5216570), (494, 2608285), (1235, 1043314), (2470, 521657)]