17961520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1$

素因数の和:358

約数の個数: 80

約数和(自身を含む): 45318528

約数和(自身を除く): 27357008

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 47, 68, 80, 85, 94, 136, 170, 188, 235, 272, 281, 340, 376, 470, 562, 680, 752, 799, 940, 1124, 1360, 1405, 1598, 1880, 2248, 2810, 3196, 3760, 3995, 4496, 4777, 5620, 6392, 7990, 9554, 11240, 12784, 13207, 15980, 19108, 22480, 23885, 26414, 31960, 38216, 47770, 52828, 63920, 66035, 76432, 95540, 105656, 132070, 191080, 211312, 224519, 264140, 382160, 449038, 528280, 898076, 1056560, 1122595, 1796152, 2245190, 3592304, 4490380, 8980760, 17961520]

約数ペア:

[(1, 17961520), (2, 8980760), (4, 4490380), (5, 3592304), (8, 2245190), (10, 1796152), (16, 1122595), (17, 1056560), (20, 898076), (34, 528280), (40, 449038), (47, 382160), (68, 264140), (80, 224519), (85, 211312), (94, 191080), (136, 132070), (170, 105656), (188, 95540), (235, 76432), (272, 66035), (281, 63920), (340, 52828), (376, 47770), (470, 38216), (562, 31960), (680, 26414), (752, 23885), (799, 22480), (940, 19108), (1124, 15980), (1360, 13207), (1405, 12784), (1598, 11240), (1880, 9554), (2248, 7990), (2810, 6392), (3196, 5620), (3760, 4777), (3995, 4496)]