20026665

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{397}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 37252800

約数和(自身を除く): 17226135

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 59, 95, 171, 177, 285, 295, 397, 531, 855, 885, 1121, 1191, 1985, 2655, 3363, 3573, 5605, 5955, 7543, 10089, 16815, 17865, 22629, 23423, 37715, 50445, 67887, 70269, 113145, 117115, 210807, 339435, 351345, 445037, 1054035, 1335111, 2225185, 4005333, 6675555, 20026665]

約数ペア:

[(1, 20026665), (3, 6675555), (5, 4005333), (9, 2225185), (15, 1335111), (19, 1054035), (45, 445037), (57, 351345), (59, 339435), (95, 210807), (171, 117115), (177, 113145), (285, 70269), (295, 67887), (397, 50445), (531, 37715), (855, 23423), (885, 22629), (1121, 17865), (1191, 16815), (1985, 10089), (2655, 7543), (3363, 5955), (3573, 5605)]