128252012

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{631}}^1$

素因数の和:727

約数の個数: 72

約数和(自身を含む): 281419488

約数和(自身を除く): 153167476

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 61, 68, 98, 119, 122, 196, 238, 244, 427, 476, 631, 833, 854, 1037, 1262, 1666, 1708, 2074, 2524, 2989, 3332, 4148, 4417, 5978, 7259, 8834, 10727, 11956, 14518, 17668, 21454, 29036, 30919, 38491, 42908, 50813, 61838, 75089, 76982, 101626, 123676, 150178, 153964, 203252, 269437, 300356, 525623, 538874, 654347, 1051246, 1077748, 1308694, 1886059, 2102492, 2617388, 3772118, 4580429, 7544236, 9160858, 18321716, 32063003, 64126006, 128252012]

約数ペア:

[(1, 128252012), (2, 64126006), (4, 32063003), (7, 18321716), (14, 9160858), (17, 7544236), (28, 4580429), (34, 3772118), (49, 2617388), (61, 2102492), (68, 1886059), (98, 1308694), (119, 1077748), (122, 1051246), (196, 654347), (238, 538874), (244, 525623), (427, 300356), (476, 269437), (631, 203252), (833, 153964), (854, 150178), (1037, 123676), (1262, 101626), (1666, 76982), (1708, 75089), (2074, 61838), (2524, 50813), (2989, 42908), (3332, 38491), (4148, 30919), (4417, 29036), (5978, 21454), (7259, 17668), (8834, 14518), (10727, 11956)]