144440840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{683}}^1$

素因数の和:1022

約数の個数: 64

約数和(自身を含む): 345720960

約数和(自身を除く): 201280120

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 311, 340, 622, 680, 683, 1244, 1366, 1555, 2488, 2732, 3110, 3415, 5287, 5464, 6220, 6830, 10574, 11611, 12440, 13660, 21148, 23222, 26435, 27320, 42296, 46444, 52870, 58055, 92888, 105740, 116110, 211480, 212413, 232220, 424826, 464440, 849652, 1062065, 1699304, 2124130, 3611021, 4248260, 7222042, 8496520, 14444084, 18055105, 28888168, 36110210, 72220420, 144440840]

約数ペア:

[(1, 144440840), (2, 72220420), (4, 36110210), (5, 28888168), (8, 18055105), (10, 14444084), (17, 8496520), (20, 7222042), (34, 4248260), (40, 3611021), (68, 2124130), (85, 1699304), (136, 1062065), (170, 849652), (311, 464440), (340, 424826), (622, 232220), (680, 212413), (683, 211480), (1244, 116110), (1366, 105740), (1555, 92888), (2488, 58055), (2732, 52870), (3110, 46444), (3415, 42296), (5287, 27320), (5464, 26435), (6220, 23222), (6830, 21148), (10574, 13660), (11611, 12440)]