8778020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{173}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 19293120

約数和(自身を除く): 10515100

約数列:

[1, 2, 4, 5, 10, 20, 43, 59, 86, 118, 172, 173, 215, 236, 295, 346, 430, 590, 692, 860, 865, 1180, 1730, 2537, 3460, 5074, 7439, 10148, 10207, 12685, 14878, 20414, 25370, 29756, 37195, 40828, 50740, 51035, 74390, 102070, 148780, 204140, 438901, 877802, 1755604, 2194505, 4389010, 8778020]

約数ペア:

[(1, 8778020), (2, 4389010), (4, 2194505), (5, 1755604), (10, 877802), (20, 438901), (43, 204140), (59, 148780), (86, 102070), (118, 74390), (172, 51035), (173, 50740), (215, 40828), (236, 37195), (295, 29756), (346, 25370), (430, 20414), (590, 14878), (692, 12685), (860, 10207), (865, 10148), (1180, 7439), (1730, 5074), (2537, 3460)]