712215

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:61

約数の個数: 72

約数和(自身を含む): 1600560

約数和(自身を除く): 888345

約数列:

[1, 3, 5, 7, 9, 15, 17, 19, 21, 35, 45, 49, 51, 57, 63, 85, 95, 105, 119, 133, 147, 153, 171, 245, 255, 285, 315, 323, 357, 399, 441, 595, 665, 735, 765, 833, 855, 931, 969, 1071, 1197, 1615, 1785, 1995, 2205, 2261, 2499, 2793, 2907, 4165, 4655, 4845, 5355, 5985, 6783, 7497, 8379, 11305, 12495, 13965, 14535, 15827, 20349, 33915, 37485, 41895, 47481, 79135, 101745, 142443, 237405, 712215]

約数ペア:

[(1, 712215), (3, 237405), (5, 142443), (7, 101745), (9, 79135), (15, 47481), (17, 41895), (19, 37485), (21, 33915), (35, 20349), (45, 15827), (49, 14535), (51, 13965), (57, 12495), (63, 11305), (85, 8379), (95, 7497), (105, 6783), (119, 5985), (133, 5355), (147, 4845), (153, 4655), (171, 4165), (245, 2907), (255, 2793), (285, 2499), (315, 2261), (323, 2205), (357, 1995), (399, 1785), (441, 1615), (595, 1197), (665, 1071), (735, 969), (765, 931), (833, 855)]