81875880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1613}}^1$

素因数の和:1680

約数の個数: 128

約数和(自身を含む): 278899200

約数和(自身を除く): 197023320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 47, 54, 60, 72, 90, 94, 108, 120, 135, 141, 180, 188, 216, 235, 270, 282, 360, 376, 423, 470, 540, 564, 705, 846, 940, 1080, 1128, 1269, 1410, 1613, 1692, 1880, 2115, 2538, 2820, 3226, 3384, 4230, 4839, 5076, 5640, 6345, 6452, 8065, 8460, 9678, 10152, 12690, 12904, 14517, 16130, 16920, 19356, 24195, 25380, 29034, 32260, 38712, 43551, 48390, 50760, 58068, 64520, 72585, 75811, 87102, 96780, 116136, 145170, 151622, 174204, 193560, 217755, 227433, 290340, 303244, 348408, 379055, 435510, 454866, 580680, 606488, 682299, 758110, 871020, 909732, 1137165, 1364598, 1516220, 1742040, 1819464, 2046897, 2274330, 2729196, 3032440, 3411495, 4093794, 4548660, 5458392, 6822990, 8187588, 9097320, 10234485, 13645980, 16375176, 20468970, 27291960, 40937940, 81875880]

約数ペア:

[(1, 81875880), (2, 40937940), (3, 27291960), (4, 20468970), (5, 16375176), (6, 13645980), (8, 10234485), (9, 9097320), (10, 8187588), (12, 6822990), (15, 5458392), (18, 4548660), (20, 4093794), (24, 3411495), (27, 3032440), (30, 2729196), (36, 2274330), (40, 2046897), (45, 1819464), (47, 1742040), (54, 1516220), (60, 1364598), (72, 1137165), (90, 909732), (94, 871020), (108, 758110), (120, 682299), (135, 606488), (141, 580680), (180, 454866), (188, 435510), (216, 379055), (235, 348408), (270, 303244), (282, 290340), (360, 227433), (376, 217755), (423, 193560), (470, 174204), (540, 151622), (564, 145170), (705, 116136), (846, 96780), (940, 87102), (1080, 75811), (1128, 72585), (1269, 64520), (1410, 58068), (1613, 50760), (1692, 48390), (1880, 43551), (2115, 38712), (2538, 32260), (2820, 29034), (3226, 25380), (3384, 24195), (4230, 19356), (4839, 16920), (5076, 16130), (5640, 14517), (6345, 12904), (6452, 12690), (8065, 10152), (8460, 9678)]