180561136

素因数分解:

$2^4\times 7^1\times {\mathrm{79}}^1\times {\mathrm{20407}}^1$

素因数の和:20501

約数の個数: 40

約数和(自身を含む): 404894720

約数和(自身を除く): 224333584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 79, 112, 158, 316, 553, 632, 1106, 1264, 2212, 4424, 8848, 20407, 40814, 81628, 142849, 163256, 285698, 326512, 571396, 1142792, 1612153, 2285584, 3224306, 6448612, 11285071, 12897224, 22570142, 25794448, 45140284, 90280568, 180561136]

約数ペア:

[(1, 180561136), (2, 90280568), (4, 45140284), (7, 25794448), (8, 22570142), (14, 12897224), (16, 11285071), (28, 6448612), (56, 3224306), (79, 2285584), (112, 1612153), (158, 1142792), (316, 571396), (553, 326512), (632, 285698), (1106, 163256), (1264, 142849), (2212, 81628), (4424, 40814), (8848, 20407)]