89492780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4357}}^1$

素因数の和:4458

約数の個数: 48

約数和(自身を含む): 205000320

約数和(自身を除く): 115507540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 1027, 1580, 2054, 4108, 4357, 5135, 8714, 10270, 17428, 20540, 21785, 43570, 56641, 87140, 113282, 226564, 283205, 344203, 566410, 688406, 1132820, 1376812, 1721015, 3442030, 4474639, 6884060, 8949278, 17898556, 22373195, 44746390, 89492780]

約数ペア:

[(1, 89492780), (2, 44746390), (4, 22373195), (5, 17898556), (10, 8949278), (13, 6884060), (20, 4474639), (26, 3442030), (52, 1721015), (65, 1376812), (79, 1132820), (130, 688406), (158, 566410), (260, 344203), (316, 283205), (395, 226564), (790, 113282), (1027, 87140), (1580, 56641), (2054, 43570), (4108, 21785), (4357, 20540), (5135, 17428), (8714, 10270)]