123672920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{5591}}^1$

素因数の和:5688

約数の個数: 64

約数和(自身を含む): 322099200

約数和(自身を除く): 198426280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 79, 140, 158, 280, 316, 395, 553, 632, 790, 1106, 1580, 2212, 2765, 3160, 4424, 5530, 5591, 11060, 11182, 22120, 22364, 27955, 39137, 44728, 55910, 78274, 111820, 156548, 195685, 223640, 313096, 391370, 441689, 782740, 883378, 1565480, 1766756, 2208445, 3091823, 3533512, 4416890, 6183646, 8833780, 12367292, 15459115, 17667560, 24734584, 30918230, 61836460, 123672920]

約数ペア:

[(1, 123672920), (2, 61836460), (4, 30918230), (5, 24734584), (7, 17667560), (8, 15459115), (10, 12367292), (14, 8833780), (20, 6183646), (28, 4416890), (35, 3533512), (40, 3091823), (56, 2208445), (70, 1766756), (79, 1565480), (140, 883378), (158, 782740), (280, 441689), (316, 391370), (395, 313096), (553, 223640), (632, 195685), (790, 156548), (1106, 111820), (1580, 78274), (2212, 55910), (2765, 44728), (3160, 39137), (4424, 27955), (5530, 22364), (5591, 22120), (11060, 11182)]