81778240

素因数分解:

$2^6\times 5^1\times {\mathrm{83}}^1\times {\mathrm{3079}}^1$

素因数の和:3179

約数の個数: 56

約数和(自身を含む): 197144640

約数和(自身を除く): 115366400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 160, 166, 320, 332, 415, 664, 830, 1328, 1660, 2656, 3079, 3320, 5312, 6158, 6640, 12316, 13280, 15395, 24632, 26560, 30790, 49264, 61580, 98528, 123160, 197056, 246320, 255557, 492640, 511114, 985280, 1022228, 1277785, 2044456, 2555570, 4088912, 5111140, 8177824, 10222280, 16355648, 20444560, 40889120, 81778240]

約数ペア:

[(1, 81778240), (2, 40889120), (4, 20444560), (5, 16355648), (8, 10222280), (10, 8177824), (16, 5111140), (20, 4088912), (32, 2555570), (40, 2044456), (64, 1277785), (80, 1022228), (83, 985280), (160, 511114), (166, 492640), (320, 255557), (332, 246320), (415, 197056), (664, 123160), (830, 98528), (1328, 61580), (1660, 49264), (2656, 30790), (3079, 26560), (3320, 24632), (5312, 15395), (6158, 13280), (6640, 12316)]