988848080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1123691}}^1$

素因数の和:1123715

約数の個数: 40

約数和(自身を含む): 2508080544

約数和(自身を除く): 1519232464

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 1123691, 2247382, 4494764, 5618455, 8989528, 11236910, 12360601, 17979056, 22473820, 24721202, 44947640, 49442404, 61803005, 89895280, 98884808, 123606010, 197769616, 247212020, 494424040, 988848080]

約数ペア:

[(1, 988848080), (2, 494424040), (4, 247212020), (5, 197769616), (8, 123606010), (10, 98884808), (11, 89895280), (16, 61803005), (20, 49442404), (22, 44947640), (40, 24721202), (44, 22473820), (55, 17979056), (80, 12360601), (88, 11236910), (110, 8989528), (176, 5618455), (220, 4494764), (440, 2247382), (880, 1123691)]