128210320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{809}}^1$

素因数の和:1112

約数の個数: 80

約数和(自身を含む): 342299520

約数和(自身を除く): 214089200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 283, 560, 566, 809, 1132, 1415, 1618, 1981, 2264, 2830, 3236, 3962, 4045, 4528, 5660, 5663, 6472, 7924, 8090, 9905, 11320, 11326, 12944, 15848, 16180, 19810, 22640, 22652, 28315, 31696, 32360, 39620, 45304, 56630, 64720, 79240, 90608, 113260, 158480, 226520, 228947, 453040, 457894, 915788, 1144735, 1602629, 1831576, 2289470, 3205258, 3663152, 4578940, 6410516, 8013145, 9157880, 12821032, 16026290, 18315760, 25642064, 32052580, 64105160, 128210320]

約数ペア:

[(1, 128210320), (2, 64105160), (4, 32052580), (5, 25642064), (7, 18315760), (8, 16026290), (10, 12821032), (14, 9157880), (16, 8013145), (20, 6410516), (28, 4578940), (35, 3663152), (40, 3205258), (56, 2289470), (70, 1831576), (80, 1602629), (112, 1144735), (140, 915788), (280, 457894), (283, 453040), (560, 228947), (566, 226520), (809, 158480), (1132, 113260), (1415, 90608), (1618, 79240), (1981, 64720), (2264, 56630), (2830, 45304), (3236, 39620), (3962, 32360), (4045, 31696), (4528, 28315), (5660, 22652), (5663, 22640), (6472, 19810), (7924, 16180), (8090, 15848), (9905, 12944), (11320, 11326)]