655099120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{629903}}^1$

素因数の和:629929

約数の個数: 40

約数和(自身を含む): 1640270016

約数和(自身を除く): 985170896

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 629903, 1259806, 2519612, 3149515, 5039224, 6299030, 8188739, 10078448, 12598060, 16377478, 25196120, 32754956, 40943695, 50392240, 65509912, 81887390, 131019824, 163774780, 327549560, 655099120]

約数ペア:

[(1, 655099120), (2, 327549560), (4, 163774780), (5, 131019824), (8, 81887390), (10, 65509912), (13, 50392240), (16, 40943695), (20, 32754956), (26, 25196120), (40, 16377478), (52, 12598060), (65, 10078448), (80, 8188739), (104, 6299030), (130, 5039224), (208, 3149515), (260, 2519612), (520, 1259806), (1040, 629903)]