890263402

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{349}}^1$

素因数の和:551

約数の個数: 64

約数和(自身を含む): 1624896000

約数和(自身を除く): 734632598

約数列:

[1, 2, 7, 14, 29, 58, 61, 103, 122, 203, 206, 349, 406, 427, 698, 721, 854, 1442, 1769, 2443, 2987, 3538, 4886, 5974, 6283, 10121, 12383, 12566, 20242, 20909, 21289, 24766, 35947, 41818, 42578, 43981, 70847, 71894, 87962, 141694, 149023, 182207, 251629, 298046, 364414, 503258, 617381, 1042463, 1234762, 1275449, 2084926, 2192767, 2550898, 4321667, 4385534, 7297241, 8643334, 14594482, 15349369, 30698738, 63590243, 127180486, 445131701, 890263402]

約数ペア:

[(1, 890263402), (2, 445131701), (7, 127180486), (14, 63590243), (29, 30698738), (58, 15349369), (61, 14594482), (103, 8643334), (122, 7297241), (203, 4385534), (206, 4321667), (349, 2550898), (406, 2192767), (427, 2084926), (698, 1275449), (721, 1234762), (854, 1042463), (1442, 617381), (1769, 503258), (2443, 364414), (2987, 298046), (3538, 251629), (4886, 182207), (5974, 149023), (6283, 141694), (10121, 87962), (12383, 71894), (12566, 70847), (20242, 43981), (20909, 42578), (21289, 41818), (24766, 35947)]