78740620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{18143}}^1$

素因数の和:18190

約数の個数: 48

約数和(自身を含む): 195084288

約数和(自身を除く): 116343668

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 18143, 36286, 72572, 90715, 127001, 181430, 254002, 362860, 508004, 562433, 635005, 1124866, 1270010, 2249732, 2540020, 2812165, 3937031, 5624330, 7874062, 11248660, 15748124, 19685155, 39370310, 78740620]

約数ペア:

[(1, 78740620), (2, 39370310), (4, 19685155), (5, 15748124), (7, 11248660), (10, 7874062), (14, 5624330), (20, 3937031), (28, 2812165), (31, 2540020), (35, 2249732), (62, 1270010), (70, 1124866), (124, 635005), (140, 562433), (155, 508004), (217, 362860), (310, 254002), (434, 181430), (620, 127001), (868, 90715), (1085, 72572), (2170, 36286), (4340, 18143)]