218114780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{1373}}^1$

素因数の和:1455

約数の個数: 72

約数和(自身を含む): 506907072

約数和(自身を除く): 288792292

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 47, 52, 65, 94, 130, 169, 188, 235, 260, 338, 470, 611, 676, 845, 940, 1222, 1373, 1690, 2444, 2746, 3055, 3380, 5492, 6110, 6865, 7943, 12220, 13730, 15886, 17849, 27460, 31772, 35698, 39715, 64531, 71396, 79430, 89245, 129062, 158860, 178490, 232037, 258124, 322655, 356980, 464074, 645310, 838903, 928148, 1160185, 1290620, 1677806, 2320370, 3355612, 4194515, 4640740, 8389030, 10905739, 16778060, 21811478, 43622956, 54528695, 109057390, 218114780]

約数ペア:

[(1, 218114780), (2, 109057390), (4, 54528695), (5, 43622956), (10, 21811478), (13, 16778060), (20, 10905739), (26, 8389030), (47, 4640740), (52, 4194515), (65, 3355612), (94, 2320370), (130, 1677806), (169, 1290620), (188, 1160185), (235, 928148), (260, 838903), (338, 645310), (470, 464074), (611, 356980), (676, 322655), (845, 258124), (940, 232037), (1222, 178490), (1373, 158860), (1690, 129062), (2444, 89245), (2746, 79430), (3055, 71396), (3380, 64531), (5492, 39715), (6110, 35698), (6865, 31772), (7943, 27460), (12220, 17849), (13730, 15886)]