201645680

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:486

約数の個数: 80

約数和(自身を含む): 480826368

約数和(自身を除く): 279180688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 131, 142, 262, 271, 284, 355, 524, 542, 568, 655, 710, 1048, 1084, 1136, 1310, 1355, 1420, 2096, 2168, 2620, 2710, 2840, 4336, 5240, 5420, 5680, 9301, 10480, 10840, 18602, 19241, 21680, 35501, 37204, 38482, 46505, 71002, 74408, 76964, 93010, 96205, 142004, 148816, 153928, 177505, 186020, 192410, 284008, 307856, 355010, 372040, 384820, 568016, 710020, 744080, 769640, 1420040, 1539280, 2520571, 2840080, 5041142, 10082284, 12602855, 20164568, 25205710, 40329136, 50411420, 100822840, 201645680]

約数ペア:

[(1, 201645680), (2, 100822840), (4, 50411420), (5, 40329136), (8, 25205710), (10, 20164568), (16, 12602855), (20, 10082284), (40, 5041142), (71, 2840080), (80, 2520571), (131, 1539280), (142, 1420040), (262, 769640), (271, 744080), (284, 710020), (355, 568016), (524, 384820), (542, 372040), (568, 355010), (655, 307856), (710, 284008), (1048, 192410), (1084, 186020), (1136, 177505), (1310, 153928), (1355, 148816), (1420, 142004), (2096, 96205), (2168, 93010), (2620, 76964), (2710, 74408), (2840, 71002), (4336, 46505), (5240, 38482), (5420, 37204), (5680, 35501), (9301, 21680), (10480, 19241), (10840, 18602)]