1640004840

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{32309}}^1$

素因数の和:32376

約数の個数: 128

約数和(自身を含む): 5583168000

約数和(自身を除く): 3943163160

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, 1692, 1880, 2115, 2538, 2820, 3384, 4230, 5076, 5640, 6345, 8460, 10152, 12690, 16920, 25380, 32309, 50760, 64618, 96927, 129236, 161545, 193854, 258472, 290781, 323090, 387708, 484635, 581562, 646180, 775416, 872343, 969270, 1163124, 1292360, 1453905, 1518523, 1744686, 1938540, 2326248, 2907810, 3037046, 3489372, 3877080, 4361715, 4555569, 5815620, 6074092, 6978744, 7592615, 8723430, 9111138, 11631240, 12148184, 13666707, 15185230, 17446860, 18222276, 22777845, 27333414, 30370460, 34893720, 36444552, 41000121, 45555690, 54666828, 60740920, 68333535, 82000242, 91111380, 109333656, 136667070, 164000484, 182222760, 205000605, 273334140, 328000968, 410001210, 546668280, 820002420, 1640004840]

約数ペア:

[(1, 1640004840), (2, 820002420), (3, 546668280), (4, 410001210), (5, 328000968), (6, 273334140), (8, 205000605), (9, 182222760), (10, 164000484), (12, 136667070), (15, 109333656), (18, 91111380), (20, 82000242), (24, 68333535), (27, 60740920), (30, 54666828), (36, 45555690), (40, 41000121), (45, 36444552), (47, 34893720), (54, 30370460), (60, 27333414), (72, 22777845), (90, 18222276), (94, 17446860), (108, 15185230), (120, 13666707), (135, 12148184), (141, 11631240), (180, 9111138), (188, 8723430), (216, 7592615), (235, 6978744), (270, 6074092), (282, 5815620), (360, 4555569), (376, 4361715), (423, 3877080), (470, 3489372), (540, 3037046), (564, 2907810), (705, 2326248), (846, 1938540), (940, 1744686), (1080, 1518523), (1128, 1453905), (1269, 1292360), (1410, 1163124), (1692, 969270), (1880, 872343), (2115, 775416), (2538, 646180), (2820, 581562), (3384, 484635), (4230, 387708), (5076, 323090), (5640, 290781), (6345, 258472), (8460, 193854), (10152, 161545), (12690, 129236), (16920, 96927), (25380, 64618), (32309, 50760)]