78901920

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{349}}^1$

素因数の和:527

約数の個数: 144

約数和(自身を含む): 271744200

約数和(自身を除く): 192842280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 157, 160, 180, 240, 288, 314, 349, 360, 471, 480, 628, 698, 720, 785, 942, 1047, 1256, 1396, 1413, 1440, 1570, 1745, 1884, 2094, 2355, 2512, 2792, 2826, 3140, 3141, 3490, 3768, 4188, 4710, 5024, 5235, 5584, 5652, 6280, 6282, 6980, 7065, 7536, 8376, 9420, 10470, 11168, 11304, 12560, 12564, 13960, 14130, 15072, 15705, 16752, 18840, 20940, 22608, 25120, 25128, 27920, 28260, 31410, 33504, 37680, 41880, 45216, 50256, 54793, 55840, 56520, 62820, 75360, 83760, 100512, 109586, 113040, 125640, 164379, 167520, 219172, 226080, 251280, 273965, 328758, 438344, 493137, 502560, 547930, 657516, 821895, 876688, 986274, 1095860, 1315032, 1643790, 1753376, 1972548, 2191720, 2465685, 2630064, 3287580, 3945096, 4383440, 4931370, 5260128, 6575160, 7890192, 8766880, 9862740, 13150320, 15780384, 19725480, 26300640, 39450960, 78901920]

約数ペア:

[(1, 78901920), (2, 39450960), (3, 26300640), (4, 19725480), (5, 15780384), (6, 13150320), (8, 9862740), (9, 8766880), (10, 7890192), (12, 6575160), (15, 5260128), (16, 4931370), (18, 4383440), (20, 3945096), (24, 3287580), (30, 2630064), (32, 2465685), (36, 2191720), (40, 1972548), (45, 1753376), (48, 1643790), (60, 1315032), (72, 1095860), (80, 986274), (90, 876688), (96, 821895), (120, 657516), (144, 547930), (157, 502560), (160, 493137), (180, 438344), (240, 328758), (288, 273965), (314, 251280), (349, 226080), (360, 219172), (471, 167520), (480, 164379), (628, 125640), (698, 113040), (720, 109586), (785, 100512), (942, 83760), (1047, 75360), (1256, 62820), (1396, 56520), (1413, 55840), (1440, 54793), (1570, 50256), (1745, 45216), (1884, 41880), (2094, 37680), (2355, 33504), (2512, 31410), (2792, 28260), (2826, 27920), (3140, 25128), (3141, 25120), (3490, 22608), (3768, 20940), (4188, 18840), (4710, 16752), (5024, 15705), (5235, 15072), (5584, 14130), (5652, 13960), (6280, 12564), (6282, 12560), (6980, 11304), (7065, 11168), (7536, 10470), (8376, 9420)]