81239200

素因数分解:

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

素因数の和:279

約数の個数: 144

約数和(自身を含む): 230610240

約数和(自身を除く): 149371040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 70, 80, 89, 100, 112, 140, 160, 163, 175, 178, 200, 224, 280, 326, 350, 356, 400, 445, 560, 623, 652, 700, 712, 800, 815, 890, 1120, 1141, 1246, 1304, 1400, 1424, 1630, 1780, 2225, 2282, 2492, 2608, 2800, 2848, 3115, 3260, 3560, 4075, 4450, 4564, 4984, 5216, 5600, 5705, 6230, 6520, 7120, 8150, 8900, 9128, 9968, 11410, 12460, 13040, 14240, 14507, 15575, 16300, 17800, 18256, 19936, 22820, 24920, 26080, 28525, 29014, 31150, 32600, 35600, 36512, 45640, 49840, 57050, 58028, 62300, 65200, 71200, 72535, 91280, 99680, 101549, 114100, 116056, 124600, 130400, 145070, 182560, 203098, 228200, 232112, 249200, 290140, 362675, 406196, 456400, 464224, 498400, 507745, 580280, 725350, 812392, 912800, 1015490, 1160560, 1450700, 1624784, 2030980, 2321120, 2538725, 2901400, 3249568, 4061960, 5077450, 5802800, 8123920, 10154900, 11605600, 16247840, 20309800, 40619600, 81239200]

約数ペア:

[(1, 81239200), (2, 40619600), (4, 20309800), (5, 16247840), (7, 11605600), (8, 10154900), (10, 8123920), (14, 5802800), (16, 5077450), (20, 4061960), (25, 3249568), (28, 2901400), (32, 2538725), (35, 2321120), (40, 2030980), (50, 1624784), (56, 1450700), (70, 1160560), (80, 1015490), (89, 912800), (100, 812392), (112, 725350), (140, 580280), (160, 507745), (163, 498400), (175, 464224), (178, 456400), (200, 406196), (224, 362675), (280, 290140), (326, 249200), (350, 232112), (356, 228200), (400, 203098), (445, 182560), (560, 145070), (623, 130400), (652, 124600), (700, 116056), (712, 114100), (800, 101549), (815, 99680), (890, 91280), (1120, 72535), (1141, 71200), (1246, 65200), (1304, 62300), (1400, 58028), (1424, 57050), (1630, 49840), (1780, 45640), (2225, 36512), (2282, 35600), (2492, 32600), (2608, 31150), (2800, 29014), (2848, 28525), (3115, 26080), (3260, 24920), (3560, 22820), (4075, 19936), (4450, 18256), (4564, 17800), (4984, 16300), (5216, 15575), (5600, 14507), (5705, 14240), (6230, 13040), (6520, 12460), (7120, 11410), (8150, 9968), (8900, 9128)]