22143220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{401}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 51057216

約数和(自身を除く): 28913996

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 251, 401, 502, 802, 1004, 1255, 1604, 2005, 2510, 2761, 4010, 4411, 5020, 5522, 8020, 8822, 11044, 13805, 17644, 22055, 27610, 44110, 55220, 88220, 100651, 201302, 402604, 503255, 1006510, 1107161, 2013020, 2214322, 4428644, 5535805, 11071610, 22143220]

約数ペア:

[(1, 22143220), (2, 11071610), (4, 5535805), (5, 4428644), (10, 2214322), (11, 2013020), (20, 1107161), (22, 1006510), (44, 503255), (55, 402604), (110, 201302), (220, 100651), (251, 88220), (401, 55220), (502, 44110), (802, 27610), (1004, 22055), (1255, 17644), (1604, 13805), (2005, 11044), (2510, 8822), (2761, 8020), (4010, 5522), (4411, 5020)]