123436520

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{9323}}^1$

素因数の和:9665

約数の個数: 32

約数和(自身を含む): 278601120

約数和(自身を除く): 155164600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2648, 3310, 6620, 9323, 13240, 18646, 37292, 46615, 74584, 93230, 186460, 372920, 3085913, 6171826, 12343652, 15429565, 24687304, 30859130, 61718260, 123436520]

約数ペア:

[(1, 123436520), (2, 61718260), (4, 30859130), (5, 24687304), (8, 15429565), (10, 12343652), (20, 6171826), (40, 3085913), (331, 372920), (662, 186460), (1324, 93230), (1655, 74584), (2648, 46615), (3310, 37292), (6620, 18646), (9323, 13240)]