81137340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4463}}^1$

素因数の和:4579

約数の個数: 72

約数和(自身を含む): 248609088

約数和(自身を除く): 167471748

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 404, 505, 606, 909, 1010, 1212, 1515, 1818, 2020, 3030, 3636, 4463, 4545, 6060, 8926, 9090, 13389, 17852, 18180, 22315, 26778, 40167, 44630, 53556, 66945, 80334, 89260, 133890, 160668, 200835, 267780, 401670, 450763, 803340, 901526, 1352289, 1803052, 2253815, 2704578, 4056867, 4507630, 5409156, 6761445, 8113734, 9015260, 13522890, 16227468, 20284335, 27045780, 40568670, 81137340]

約数ペア:

[(1, 81137340), (2, 40568670), (3, 27045780), (4, 20284335), (5, 16227468), (6, 13522890), (9, 9015260), (10, 8113734), (12, 6761445), (15, 5409156), (18, 4507630), (20, 4056867), (30, 2704578), (36, 2253815), (45, 1803052), (60, 1352289), (90, 901526), (101, 803340), (180, 450763), (202, 401670), (303, 267780), (404, 200835), (505, 160668), (606, 133890), (909, 89260), (1010, 80334), (1212, 66945), (1515, 53556), (1818, 44630), (2020, 40167), (3030, 26778), (3636, 22315), (4463, 18180), (4545, 17852), (6060, 13389), (8926, 9090)]