21622760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1237}}^1$

素因数の和:1290

約数の個数: 64

約数和(自身を含む): 53481600

約数和(自身を除く): 31858840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 76, 92, 95, 115, 152, 184, 190, 230, 380, 437, 460, 760, 874, 920, 1237, 1748, 2185, 2474, 3496, 4370, 4948, 6185, 8740, 9896, 12370, 17480, 23503, 24740, 28451, 47006, 49480, 56902, 94012, 113804, 117515, 142255, 188024, 227608, 235030, 284510, 470060, 540569, 569020, 940120, 1081138, 1138040, 2162276, 2702845, 4324552, 5405690, 10811380, 21622760]

約数ペア:

[(1, 21622760), (2, 10811380), (4, 5405690), (5, 4324552), (8, 2702845), (10, 2162276), (19, 1138040), (20, 1081138), (23, 940120), (38, 569020), (40, 540569), (46, 470060), (76, 284510), (92, 235030), (95, 227608), (115, 188024), (152, 142255), (184, 117515), (190, 113804), (230, 94012), (380, 56902), (437, 49480), (460, 47006), (760, 28451), (874, 24740), (920, 23503), (1237, 17480), (1748, 12370), (2185, 9896), (2474, 8740), (3496, 6185), (4370, 4948)]