221007280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{212507}}^1$

素因数の和:212533

約数の個数: 40

約数和(自身を含む): 553370832

約数和(自身を除く): 332363552

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 212507, 425014, 850028, 1062535, 1700056, 2125070, 2762591, 3400112, 4250140, 5525182, 8500280, 11050364, 13812955, 17000560, 22100728, 27625910, 44201456, 55251820, 110503640, 221007280]

約数ペア:

[(1, 221007280), (2, 110503640), (4, 55251820), (5, 44201456), (8, 27625910), (10, 22100728), (13, 17000560), (16, 13812955), (20, 11050364), (26, 8500280), (40, 5525182), (52, 4250140), (65, 3400112), (80, 2762591), (104, 2125070), (130, 1700056), (208, 1062535), (260, 850028), (520, 425014), (1040, 212507)]