1888349720

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{439}}^1\times {\mathrm{2029}}^1$

素因数の和:2532

約数の個数: 64

約数和(自身を含む): 4340952000

約数和(自身を除く): 2452602280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 439, 530, 878, 1060, 1756, 2029, 2120, 2195, 3512, 4058, 4390, 8116, 8780, 10145, 16232, 17560, 20290, 23267, 40580, 46534, 81160, 93068, 107537, 116335, 186136, 215074, 232670, 430148, 465340, 537685, 860296, 890731, 930680, 1075370, 1781462, 2150740, 3562924, 4301480, 4453655, 7125848, 8907310, 17814620, 35629240, 47208743, 94417486, 188834972, 236043715, 377669944, 472087430, 944174860, 1888349720]

約数ペア:

[(1, 1888349720), (2, 944174860), (4, 472087430), (5, 377669944), (8, 236043715), (10, 188834972), (20, 94417486), (40, 47208743), (53, 35629240), (106, 17814620), (212, 8907310), (265, 7125848), (424, 4453655), (439, 4301480), (530, 3562924), (878, 2150740), (1060, 1781462), (1756, 1075370), (2029, 930680), (2120, 890731), (2195, 860296), (3512, 537685), (4058, 465340), (4390, 430148), (8116, 232670), (8780, 215074), (10145, 186136), (16232, 116335), (17560, 107537), (20290, 93068), (23267, 81160), (40580, 46534)]