28866425

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{313}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 44854272

約数和(自身を除く): 15987847

約数列:

[1, 5, 7, 17, 25, 31, 35, 85, 119, 155, 175, 217, 313, 425, 527, 595, 775, 1085, 1565, 2191, 2635, 2975, 3689, 5321, 5425, 7825, 9703, 10955, 13175, 18445, 26605, 37247, 48515, 54775, 67921, 92225, 133025, 164951, 186235, 242575, 339605, 824755, 931175, 1154657, 1698025, 4123775, 5773285, 28866425]

約数ペア:

[(1, 28866425), (5, 5773285), (7, 4123775), (17, 1698025), (25, 1154657), (31, 931175), (35, 824755), (85, 339605), (119, 242575), (155, 186235), (175, 164951), (217, 133025), (313, 92225), (425, 67921), (527, 54775), (595, 48515), (775, 37247), (1085, 26605), (1565, 18445), (2191, 13175), (2635, 10955), (2975, 9703), (3689, 7825), (5321, 5425)]