72220420

素因数分解:

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

素因数の和:1020

約数の個数: 48

約数和(自身を含む): 161336448

約数和(自身を除く): 89116028

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 311, 340, 622, 683, 1244, 1366, 1555, 2732, 3110, 3415, 5287, 6220, 6830, 10574, 11611, 13660, 21148, 23222, 26435, 46444, 52870, 58055, 105740, 116110, 212413, 232220, 424826, 849652, 1062065, 2124130, 3611021, 4248260, 7222042, 14444084, 18055105, 36110210, 72220420]

約数ペア:

[(1, 72220420), (2, 36110210), (4, 18055105), (5, 14444084), (10, 7222042), (17, 4248260), (20, 3611021), (34, 2124130), (68, 1062065), (85, 849652), (170, 424826), (311, 232220), (340, 212413), (622, 116110), (683, 105740), (1244, 58055), (1366, 52870), (1555, 46444), (2732, 26435), (3110, 23222), (3415, 21148), (5287, 13660), (6220, 11611), (6830, 10574)]