18472880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^3\times {\mathrm{47}}^1$

素因数の和:111

約数の個数: 80

約数和(自身を含む): 46604160

約数和(自身を除く): 28131280

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 47, 68, 80, 85, 94, 136, 170, 188, 235, 272, 289, 340, 376, 470, 578, 680, 752, 799, 940, 1156, 1360, 1445, 1598, 1880, 2312, 2890, 3196, 3760, 3995, 4624, 4913, 5780, 6392, 7990, 9826, 11560, 12784, 13583, 15980, 19652, 23120, 24565, 27166, 31960, 39304, 49130, 54332, 63920, 67915, 78608, 98260, 108664, 135830, 196520, 217328, 230911, 271660, 393040, 461822, 543320, 923644, 1086640, 1154555, 1847288, 2309110, 3694576, 4618220, 9236440, 18472880]

約数ペア:

[(1, 18472880), (2, 9236440), (4, 4618220), (5, 3694576), (8, 2309110), (10, 1847288), (16, 1154555), (17, 1086640), (20, 923644), (34, 543320), (40, 461822), (47, 393040), (68, 271660), (80, 230911), (85, 217328), (94, 196520), (136, 135830), (170, 108664), (188, 98260), (235, 78608), (272, 67915), (289, 63920), (340, 54332), (376, 49130), (470, 39304), (578, 31960), (680, 27166), (752, 24565), (799, 23120), (940, 19652), (1156, 15980), (1360, 13583), (1445, 12784), (1598, 11560), (1880, 9826), (2312, 7990), (2890, 6392), (3196, 5780), (3760, 4913), (3995, 4624)]