30657140

素因数分解:

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

素因数の和:488

約数の個数: 48

約数和(自身を含む): 67060224

約数和(自身を除く): 36403084

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 197, 251, 310, 394, 502, 620, 788, 985, 1004, 1255, 1970, 2510, 3940, 5020, 6107, 7781, 12214, 15562, 24428, 30535, 31124, 38905, 49447, 61070, 77810, 98894, 122140, 155620, 197788, 247235, 494470, 988940, 1532857, 3065714, 6131428, 7664285, 15328570, 30657140]

約数ペア:

[(1, 30657140), (2, 15328570), (4, 7664285), (5, 6131428), (10, 3065714), (20, 1532857), (31, 988940), (62, 494470), (124, 247235), (155, 197788), (197, 155620), (251, 122140), (310, 98894), (394, 77810), (502, 61070), (620, 49447), (788, 38905), (985, 31124), (1004, 30535), (1255, 24428), (1970, 15562), (2510, 12214), (3940, 7781), (5020, 6107)]