65789620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{3203}}^1$

素因数の和:3304

約数の個数: 48

約数和(自身を含む): 150716160

約数和(自身を除く): 84926540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 1027, 1580, 2054, 3203, 4108, 5135, 6406, 10270, 12812, 16015, 20540, 32030, 41639, 64060, 83278, 166556, 208195, 253037, 416390, 506074, 832780, 1012148, 1265185, 2530370, 3289481, 5060740, 6578962, 13157924, 16447405, 32894810, 65789620]

約数ペア:

[(1, 65789620), (2, 32894810), (4, 16447405), (5, 13157924), (10, 6578962), (13, 5060740), (20, 3289481), (26, 2530370), (52, 1265185), (65, 1012148), (79, 832780), (130, 506074), (158, 416390), (260, 253037), (316, 208195), (395, 166556), (790, 83278), (1027, 64060), (1580, 41639), (2054, 32030), (3203, 20540), (4108, 16015), (5135, 12812), (6406, 10270)]