215565320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{661}}^1$

素因数の和:966

約数の個数: 64

約数和(自身を含む): 503331840

約数和(自身を除く): 287766520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 263, 310, 526, 620, 661, 1052, 1240, 1315, 1322, 2104, 2630, 2644, 3305, 5260, 5288, 6610, 8153, 10520, 13220, 16306, 20491, 26440, 32612, 40765, 40982, 65224, 81530, 81964, 102455, 163060, 163928, 173843, 204910, 326120, 347686, 409820, 695372, 819640, 869215, 1390744, 1738430, 3476860, 5389133, 6953720, 10778266, 21556532, 26945665, 43113064, 53891330, 107782660, 215565320]

約数ペア:

[(1, 215565320), (2, 107782660), (4, 53891330), (5, 43113064), (8, 26945665), (10, 21556532), (20, 10778266), (31, 6953720), (40, 5389133), (62, 3476860), (124, 1738430), (155, 1390744), (248, 869215), (263, 819640), (310, 695372), (526, 409820), (620, 347686), (661, 326120), (1052, 204910), (1240, 173843), (1315, 163928), (1322, 163060), (2104, 102455), (2630, 81964), (2644, 81530), (3305, 65224), (5260, 40982), (5288, 40765), (6610, 32612), (8153, 26440), (10520, 20491), (13220, 16306)]