80193280

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:142

約数の個数: 144

約数和(自身を含む): 207212544

約数和(自身を除く): 127019264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 43, 47, 62, 64, 80, 86, 94, 124, 128, 155, 160, 172, 188, 215, 235, 248, 256, 310, 320, 344, 376, 430, 470, 496, 620, 640, 688, 752, 860, 940, 992, 1240, 1280, 1333, 1376, 1457, 1504, 1720, 1880, 1984, 2021, 2480, 2666, 2752, 2914, 3008, 3440, 3760, 3968, 4042, 4960, 5332, 5504, 5828, 6016, 6665, 6880, 7285, 7520, 7936, 8084, 9920, 10105, 10664, 11008, 11656, 12032, 13330, 13760, 14570, 15040, 16168, 19840, 20210, 21328, 23312, 26660, 27520, 29140, 30080, 32336, 39680, 40420, 42656, 46624, 53320, 55040, 58280, 60160, 62651, 64672, 80840, 85312, 93248, 106640, 116560, 125302, 129344, 161680, 170624, 186496, 213280, 233120, 250604, 258688, 313255, 323360, 341248, 372992, 426560, 466240, 501208, 517376, 626510, 646720, 853120, 932480, 1002416, 1253020, 1293440, 1706240, 1864960, 2004832, 2506040, 2586880, 4009664, 5012080, 8019328, 10024160, 16038656, 20048320, 40096640, 80193280]

約数ペア:

[(1, 80193280), (2, 40096640), (4, 20048320), (5, 16038656), (8, 10024160), (10, 8019328), (16, 5012080), (20, 4009664), (31, 2586880), (32, 2506040), (40, 2004832), (43, 1864960), (47, 1706240), (62, 1293440), (64, 1253020), (80, 1002416), (86, 932480), (94, 853120), (124, 646720), (128, 626510), (155, 517376), (160, 501208), (172, 466240), (188, 426560), (215, 372992), (235, 341248), (248, 323360), (256, 313255), (310, 258688), (320, 250604), (344, 233120), (376, 213280), (430, 186496), (470, 170624), (496, 161680), (620, 129344), (640, 125302), (688, 116560), (752, 106640), (860, 93248), (940, 85312), (992, 80840), (1240, 64672), (1280, 62651), (1333, 60160), (1376, 58280), (1457, 55040), (1504, 53320), (1720, 46624), (1880, 42656), (1984, 40420), (2021, 39680), (2480, 32336), (2666, 30080), (2752, 29140), (2914, 27520), (3008, 26660), (3440, 23312), (3760, 21328), (3968, 20210), (4042, 19840), (4960, 16168), (5332, 15040), (5504, 14570), (5828, 13760), (6016, 13330), (6665, 12032), (6880, 11656), (7285, 11008), (7520, 10664), (7936, 10105), (8084, 9920)]