81245500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{139}}^1\times {\mathrm{167}}^1$

素因数の和:332

約数の個数: 96

約数和(自身を含む): 205470720

約数和(自身を除く): 124225220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 125, 139, 140, 167, 175, 250, 278, 334, 350, 500, 556, 668, 695, 700, 835, 875, 973, 1169, 1390, 1670, 1750, 1946, 2338, 2780, 3340, 3475, 3500, 3892, 4175, 4676, 4865, 5845, 6950, 8350, 9730, 11690, 13900, 16700, 17375, 19460, 20875, 23213, 23380, 24325, 29225, 34750, 41750, 46426, 48650, 58450, 69500, 83500, 92852, 97300, 116065, 116900, 121625, 146125, 162491, 232130, 243250, 292250, 324982, 464260, 486500, 580325, 584500, 649964, 812455, 1160650, 1624910, 2321300, 2901625, 3249820, 4062275, 5803250, 8124550, 11606500, 16249100, 20311375, 40622750, 81245500]

約数ペア:

[(1, 81245500), (2, 40622750), (4, 20311375), (5, 16249100), (7, 11606500), (10, 8124550), (14, 5803250), (20, 4062275), (25, 3249820), (28, 2901625), (35, 2321300), (50, 1624910), (70, 1160650), (100, 812455), (125, 649964), (139, 584500), (140, 580325), (167, 486500), (175, 464260), (250, 324982), (278, 292250), (334, 243250), (350, 232130), (500, 162491), (556, 146125), (668, 121625), (695, 116900), (700, 116065), (835, 97300), (875, 92852), (973, 83500), (1169, 69500), (1390, 58450), (1670, 48650), (1750, 46426), (1946, 41750), (2338, 34750), (2780, 29225), (3340, 24325), (3475, 23380), (3500, 23213), (3892, 20875), (4175, 19460), (4676, 17375), (4865, 16700), (5845, 13900), (6950, 11690), (8350, 9730)]