22778860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1109}}^1$

素因数の和:1210

約数の個数: 48

約数和(自身を含む): 52214400

約数和(自身を除く): 29435540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 1027, 1109, 1580, 2054, 2218, 4108, 4436, 5135, 5545, 10270, 11090, 14417, 20540, 22180, 28834, 57668, 72085, 87611, 144170, 175222, 288340, 350444, 438055, 876110, 1138943, 1752220, 2277886, 4555772, 5694715, 11389430, 22778860]

約数ペア:

[(1, 22778860), (2, 11389430), (4, 5694715), (5, 4555772), (10, 2277886), (13, 1752220), (20, 1138943), (26, 876110), (52, 438055), (65, 350444), (79, 288340), (130, 175222), (158, 144170), (260, 87611), (316, 72085), (395, 57668), (790, 28834), (1027, 22180), (1109, 20540), (1580, 14417), (2054, 11090), (2218, 10270), (4108, 5545), (4436, 5135)]