71891960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{256757}}^1$

素因数の和:256775

約数の個数: 32

約数和(自身を含む): 184865760

約数和(自身を除く): 112973800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 256757, 513514, 1027028, 1283785, 1797299, 2054056, 2567570, 3594598, 5135140, 7189196, 8986495, 10270280, 14378392, 17972990, 35945980, 71891960]

約数ペア:

[(1, 71891960), (2, 35945980), (4, 17972990), (5, 14378392), (7, 10270280), (8, 8986495), (10, 7189196), (14, 5135140), (20, 3594598), (28, 2567570), (35, 2054056), (40, 1797299), (56, 1283785), (70, 1027028), (140, 513514), (280, 256757)]