2190100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{181}}^1$

素因数の和:217

約数の個数: 54

約数和(自身を含む): 5252702

約数和(自身を除く): 3062602

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 121, 181, 220, 242, 275, 362, 484, 550, 605, 724, 905, 1100, 1210, 1810, 1991, 2420, 3025, 3620, 3982, 4525, 6050, 7964, 9050, 9955, 12100, 18100, 19910, 21901, 39820, 43802, 49775, 87604, 99550, 109505, 199100, 219010, 438020, 547525, 1095050, 2190100]

約数ペア:

[(1, 2190100), (2, 1095050), (4, 547525), (5, 438020), (10, 219010), (11, 199100), (20, 109505), (22, 99550), (25, 87604), (44, 49775), (50, 43802), (55, 39820), (100, 21901), (110, 19910), (121, 18100), (181, 12100), (220, 9955), (242, 9050), (275, 7964), (362, 6050), (484, 4525), (550, 3982), (605, 3620), (724, 3025), (905, 2420), (1100, 1991), (1210, 1810)]