20309800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:275

約数の個数: 96

約数和(自身を含む): 54907200

約数和(自身を除く): 34597400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 89, 100, 140, 163, 175, 178, 200, 280, 326, 350, 356, 445, 623, 652, 700, 712, 815, 890, 1141, 1246, 1304, 1400, 1630, 1780, 2225, 2282, 2492, 3115, 3260, 3560, 4075, 4450, 4564, 4984, 5705, 6230, 6520, 8150, 8900, 9128, 11410, 12460, 14507, 15575, 16300, 17800, 22820, 24920, 28525, 29014, 31150, 32600, 45640, 57050, 58028, 62300, 72535, 101549, 114100, 116056, 124600, 145070, 203098, 228200, 290140, 362675, 406196, 507745, 580280, 725350, 812392, 1015490, 1450700, 2030980, 2538725, 2901400, 4061960, 5077450, 10154900, 20309800]

約数ペア:

[(1, 20309800), (2, 10154900), (4, 5077450), (5, 4061960), (7, 2901400), (8, 2538725), (10, 2030980), (14, 1450700), (20, 1015490), (25, 812392), (28, 725350), (35, 580280), (40, 507745), (50, 406196), (56, 362675), (70, 290140), (89, 228200), (100, 203098), (140, 145070), (163, 124600), (175, 116056), (178, 114100), (200, 101549), (280, 72535), (326, 62300), (350, 58028), (356, 57050), (445, 45640), (623, 32600), (652, 31150), (700, 29014), (712, 28525), (815, 24920), (890, 22820), (1141, 17800), (1246, 16300), (1304, 15575), (1400, 14507), (1630, 12460), (1780, 11410), (2225, 9128), (2282, 8900), (2492, 8150), (3115, 6520), (3260, 6230), (3560, 5705), (4075, 4984), (4450, 4564)]