220807280

素因数分解:

$2^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1\times {\mathrm{211}}^1$

素因数の和:454

約数の個数: 80

約数和(自身を含む): 524918784

約数和(自身を除く): 304111504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 103, 127, 206, 211, 254, 412, 422, 508, 515, 635, 824, 844, 1016, 1030, 1055, 1270, 1648, 1688, 2032, 2060, 2110, 2540, 3376, 4120, 4220, 5080, 8240, 8440, 10160, 13081, 16880, 21733, 26162, 26797, 43466, 52324, 53594, 65405, 86932, 104648, 107188, 108665, 130810, 133985, 173864, 209296, 214376, 217330, 261620, 267970, 347728, 428752, 434660, 523240, 535940, 869320, 1046480, 1071880, 1738640, 2143760, 2760091, 5520182, 11040364, 13800455, 22080728, 27600910, 44161456, 55201820, 110403640, 220807280]

約数ペア:

[(1, 220807280), (2, 110403640), (4, 55201820), (5, 44161456), (8, 27600910), (10, 22080728), (16, 13800455), (20, 11040364), (40, 5520182), (80, 2760091), (103, 2143760), (127, 1738640), (206, 1071880), (211, 1046480), (254, 869320), (412, 535940), (422, 523240), (508, 434660), (515, 428752), (635, 347728), (824, 267970), (844, 261620), (1016, 217330), (1030, 214376), (1055, 209296), (1270, 173864), (1648, 133985), (1688, 130810), (2032, 108665), (2060, 107188), (2110, 104648), (2540, 86932), (3376, 65405), (4120, 53594), (4220, 52324), (5080, 43466), (8240, 26797), (8440, 26162), (10160, 21733), (13081, 16880)]