87810520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{7649}}^1$

素因数の和:7708

約数の個数: 64

約数和(自身を含む): 231336000

約数和(自身を除く): 143525480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 56, 70, 82, 140, 164, 205, 280, 287, 328, 410, 574, 820, 1148, 1435, 1640, 2296, 2870, 5740, 7649, 11480, 15298, 30596, 38245, 53543, 61192, 76490, 107086, 152980, 214172, 267715, 305960, 313609, 428344, 535430, 627218, 1070860, 1254436, 1568045, 2141720, 2195263, 2508872, 3136090, 4390526, 6272180, 8781052, 10976315, 12544360, 17562104, 21952630, 43905260, 87810520]

約数ペア:

[(1, 87810520), (2, 43905260), (4, 21952630), (5, 17562104), (7, 12544360), (8, 10976315), (10, 8781052), (14, 6272180), (20, 4390526), (28, 3136090), (35, 2508872), (40, 2195263), (41, 2141720), (56, 1568045), (70, 1254436), (82, 1070860), (140, 627218), (164, 535430), (205, 428344), (280, 313609), (287, 305960), (328, 267715), (410, 214172), (574, 152980), (820, 107086), (1148, 76490), (1435, 61192), (1640, 53543), (2296, 38245), (2870, 30596), (5740, 15298), (7649, 11480)]