61314280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{251}}^1$

素因数の和:490

約数の個数: 64

約数和(自身を含む): 143700480

約数和(自身を除く): 82386200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 197, 248, 251, 310, 394, 502, 620, 788, 985, 1004, 1240, 1255, 1576, 1970, 2008, 2510, 3940, 5020, 6107, 7781, 7880, 10040, 12214, 15562, 24428, 30535, 31124, 38905, 48856, 49447, 61070, 62248, 77810, 98894, 122140, 155620, 197788, 244280, 247235, 311240, 395576, 494470, 988940, 1532857, 1977880, 3065714, 6131428, 7664285, 12262856, 15328570, 30657140, 61314280]

約数ペア:

[(1, 61314280), (2, 30657140), (4, 15328570), (5, 12262856), (8, 7664285), (10, 6131428), (20, 3065714), (31, 1977880), (40, 1532857), (62, 988940), (124, 494470), (155, 395576), (197, 311240), (248, 247235), (251, 244280), (310, 197788), (394, 155620), (502, 122140), (620, 98894), (788, 77810), (985, 62248), (1004, 61070), (1240, 49447), (1255, 48856), (1576, 38905), (1970, 31124), (2008, 30535), (2510, 24428), (3940, 15562), (5020, 12214), (6107, 10040), (7781, 7880)]