278350540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1070579}}^1$

素因数の和:1070601

約数の個数: 24

約数和(自身を含む): 629501040

約数和(自身を除く): 351150500

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1070579, 2141158, 4282316, 5352895, 10705790, 13917527, 21411580, 27835054, 55670108, 69587635, 139175270, 278350540]

約数ペア:

[(1, 278350540), (2, 139175270), (4, 69587635), (5, 55670108), (10, 27835054), (13, 21411580), (20, 13917527), (26, 10705790), (52, 5352895), (65, 4282316), (130, 2141158), (260, 1070579)]