12978735

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{661}}^1$

素因数の和:704

約数の個数: 64

約数和(自身を含む): 27454464

約数和(自身を除く): 14475729

約数列:

[1, 3, 5, 7, 11, 15, 17, 21, 33, 35, 51, 55, 77, 85, 105, 119, 165, 187, 231, 255, 357, 385, 561, 595, 661, 935, 1155, 1309, 1785, 1983, 2805, 3305, 3927, 4627, 6545, 7271, 9915, 11237, 13881, 19635, 21813, 23135, 33711, 36355, 50897, 56185, 69405, 78659, 109065, 123607, 152691, 168555, 235977, 254485, 370821, 393295, 618035, 763455, 865249, 1179885, 1854105, 2595747, 4326245, 12978735]

約数ペア:

[(1, 12978735), (3, 4326245), (5, 2595747), (7, 1854105), (11, 1179885), (15, 865249), (17, 763455), (21, 618035), (33, 393295), (35, 370821), (51, 254485), (55, 235977), (77, 168555), (85, 152691), (105, 123607), (119, 109065), (165, 78659), (187, 69405), (231, 56185), (255, 50897), (357, 36355), (385, 33711), (561, 23135), (595, 21813), (661, 19635), (935, 13881), (1155, 11237), (1309, 9915), (1785, 7271), (1983, 6545), (2805, 4627), (3305, 3927)]