131398528

素因数分解:

$2^7\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{557}}^1$

素因数の和:687

約数の個数: 64

約数和(自身を含む): 278888400

約数和(自身を除く): 147489872

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 97, 128, 152, 194, 304, 388, 557, 608, 776, 1114, 1216, 1552, 1843, 2228, 2432, 3104, 3686, 4456, 6208, 7372, 8912, 10583, 12416, 14744, 17824, 21166, 29488, 35648, 42332, 54029, 58976, 71296, 84664, 108058, 117952, 169328, 216116, 235904, 338656, 432232, 677312, 864464, 1026551, 1354624, 1728928, 2053102, 3457856, 4106204, 6915712, 8212408, 16424816, 32849632, 65699264, 131398528]

約数ペア:

[(1, 131398528), (2, 65699264), (4, 32849632), (8, 16424816), (16, 8212408), (19, 6915712), (32, 4106204), (38, 3457856), (64, 2053102), (76, 1728928), (97, 1354624), (128, 1026551), (152, 864464), (194, 677312), (304, 432232), (388, 338656), (557, 235904), (608, 216116), (776, 169328), (1114, 117952), (1216, 108058), (1552, 84664), (1843, 71296), (2228, 58976), (2432, 54029), (3104, 42332), (3686, 35648), (4456, 29488), (6208, 21166), (7372, 17824), (8912, 14744), (10583, 12416)]