139995520

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31249}}^1$

素因数の和:31275

約数の個数: 64

約数和(自身を含む): 382500000

約数和(自身を除く): 242504480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 31249, 62498, 124996, 156245, 218743, 249992, 312490, 437486, 499984, 624980, 874972, 999968, 1093715, 1249960, 1749944, 1999936, 2187430, 2499920, 3499888, 3999872, 4374860, 4999840, 6999776, 8749720, 9999680, 13999552, 17499440, 19999360, 27999104, 34998880, 69997760, 139995520]

約数ペア:

[(1, 139995520), (2, 69997760), (4, 34998880), (5, 27999104), (7, 19999360), (8, 17499440), (10, 13999552), (14, 9999680), (16, 8749720), (20, 6999776), (28, 4999840), (32, 4374860), (35, 3999872), (40, 3499888), (56, 2499920), (64, 2187430), (70, 1999936), (80, 1749944), (112, 1249960), (128, 1093715), (140, 999968), (160, 874972), (224, 624980), (280, 499984), (320, 437486), (448, 312490), (560, 249992), (640, 218743), (896, 156245), (1120, 124996), (2240, 62498), (4480, 31249)]