84975280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{81707}}^1$

素因数の和:81733

約数の個数: 40

約数和(自身を含む): 212767632

約数和(自身を除く): 127792352

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 81707, 163414, 326828, 408535, 653656, 817070, 1062191, 1307312, 1634140, 2124382, 3268280, 4248764, 5310955, 6536560, 8497528, 10621910, 16995056, 21243820, 42487640, 84975280]

約数ペア:

[(1, 84975280), (2, 42487640), (4, 21243820), (5, 16995056), (8, 10621910), (10, 8497528), (13, 6536560), (16, 5310955), (20, 4248764), (26, 3268280), (40, 2124382), (52, 1634140), (65, 1307312), (80, 1062191), (104, 817070), (130, 653656), (208, 408535), (260, 326828), (520, 163414), (1040, 81707)]