31892980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1451}}^1$

素因数の和:1624

約数の個数: 48

約数和(自身を含む): 77083776

約数和(自身を除く): 45190796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 157, 314, 628, 785, 1099, 1451, 1570, 2198, 2902, 3140, 4396, 5495, 5804, 7255, 10157, 10990, 14510, 20314, 21980, 29020, 40628, 50785, 101570, 203140, 227807, 455614, 911228, 1139035, 1594649, 2278070, 3189298, 4556140, 6378596, 7973245, 15946490, 31892980]

約数ペア:

[(1, 31892980), (2, 15946490), (4, 7973245), (5, 6378596), (7, 4556140), (10, 3189298), (14, 2278070), (20, 1594649), (28, 1139035), (35, 911228), (70, 455614), (140, 227807), (157, 203140), (314, 101570), (628, 50785), (785, 40628), (1099, 29020), (1451, 21980), (1570, 20314), (2198, 14510), (2902, 10990), (3140, 10157), (4396, 7255), (5495, 5804)]