290820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 842688

約数和(自身を除く): 551868

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 111, 131, 148, 185, 222, 262, 370, 393, 444, 524, 555, 655, 740, 786, 1110, 1310, 1572, 1965, 2220, 2620, 3930, 4847, 7860, 9694, 14541, 19388, 24235, 29082, 48470, 58164, 72705, 96940, 145410, 290820]

約数ペア:

[(1, 290820), (2, 145410), (3, 96940), (4, 72705), (5, 58164), (6, 48470), (10, 29082), (12, 24235), (15, 19388), (20, 14541), (30, 9694), (37, 7860), (60, 4847), (74, 3930), (111, 2620), (131, 2220), (148, 1965), (185, 1572), (222, 1310), (262, 1110), (370, 786), (393, 740), (444, 655), (524, 555)]