77890520

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{809}}^1$

素因数の和:932

約数の個数: 64

約数和(自身を含む): 183708000

約数和(自身を除く): 105817480

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 83, 116, 145, 166, 232, 290, 332, 415, 580, 664, 809, 830, 1160, 1618, 1660, 2407, 3236, 3320, 4045, 4814, 6472, 8090, 9628, 12035, 16180, 19256, 23461, 24070, 32360, 46922, 48140, 67147, 93844, 96280, 117305, 134294, 187688, 234610, 268588, 335735, 469220, 537176, 671470, 938440, 1342940, 1947263, 2685880, 3894526, 7789052, 9736315, 15578104, 19472630, 38945260, 77890520]

約数ペア:

[(1, 77890520), (2, 38945260), (4, 19472630), (5, 15578104), (8, 9736315), (10, 7789052), (20, 3894526), (29, 2685880), (40, 1947263), (58, 1342940), (83, 938440), (116, 671470), (145, 537176), (166, 469220), (232, 335735), (290, 268588), (332, 234610), (415, 187688), (580, 134294), (664, 117305), (809, 96280), (830, 93844), (1160, 67147), (1618, 48140), (1660, 46922), (2407, 32360), (3236, 24070), (3320, 23461), (4045, 19256), (4814, 16180), (6472, 12035), (8090, 9628)]