19729425

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{193}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 34640640

約数和(自身を除く): 14911215

約数列:

[1, 3, 5, 15, 25, 29, 47, 75, 87, 141, 145, 193, 235, 435, 579, 705, 725, 965, 1175, 1363, 2175, 2895, 3525, 4089, 4825, 5597, 6815, 9071, 14475, 16791, 20445, 27213, 27985, 34075, 45355, 83955, 102225, 136065, 139925, 226775, 263059, 419775, 680325, 789177, 1315295, 3945885, 6576475, 19729425]

約数ペア:

[(1, 19729425), (3, 6576475), (5, 3945885), (15, 1315295), (25, 789177), (29, 680325), (47, 419775), (75, 263059), (87, 226775), (141, 139925), (145, 136065), (193, 102225), (235, 83955), (435, 45355), (579, 34075), (705, 27985), (725, 27213), (965, 20445), (1175, 16791), (1363, 14475), (2175, 9071), (2895, 6815), (3525, 5597), (4089, 4825)]