81493770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1993}}^1$

素因数の和:2079

約数の個数: 64

約数和(自身を含む): 206737920

約数和(自身を除く): 125244150

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 47, 58, 87, 94, 141, 145, 174, 235, 282, 290, 435, 470, 705, 870, 1363, 1410, 1993, 2726, 3986, 4089, 5979, 6815, 8178, 9965, 11958, 13630, 19930, 20445, 29895, 40890, 57797, 59790, 93671, 115594, 173391, 187342, 281013, 288985, 346782, 468355, 562026, 577970, 866955, 936710, 1405065, 1733910, 2716459, 2810130, 5432918, 8149377, 13582295, 16298754, 27164590, 40746885, 81493770]

約数ペア:

[(1, 81493770), (2, 40746885), (3, 27164590), (5, 16298754), (6, 13582295), (10, 8149377), (15, 5432918), (29, 2810130), (30, 2716459), (47, 1733910), (58, 1405065), (87, 936710), (94, 866955), (141, 577970), (145, 562026), (174, 468355), (235, 346782), (282, 288985), (290, 281013), (435, 187342), (470, 173391), (705, 115594), (870, 93671), (1363, 59790), (1410, 57797), (1993, 40890), (2726, 29895), (3986, 20445), (4089, 19930), (5979, 13630), (6815, 11958), (8178, 9965)]