1385720

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{101}}^1$

素因数の和:133

約数の個数: 64

約数和(自身を含む): 3672000

約数和(自身を除く): 2286280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 101, 140, 196, 202, 245, 280, 343, 392, 404, 490, 505, 686, 707, 808, 980, 1010, 1372, 1414, 1715, 1960, 2020, 2744, 2828, 3430, 3535, 4040, 4949, 5656, 6860, 7070, 9898, 13720, 14140, 19796, 24745, 28280, 34643, 39592, 49490, 69286, 98980, 138572, 173215, 197960, 277144, 346430, 692860, 1385720]

約数ペア:

[(1, 1385720), (2, 692860), (4, 346430), (5, 277144), (7, 197960), (8, 173215), (10, 138572), (14, 98980), (20, 69286), (28, 49490), (35, 39592), (40, 34643), (49, 28280), (56, 24745), (70, 19796), (98, 14140), (101, 13720), (140, 9898), (196, 7070), (202, 6860), (245, 5656), (280, 4949), (343, 4040), (392, 3535), (404, 3430), (490, 2828), (505, 2744), (686, 2020), (707, 1960), (808, 1715), (980, 1414), (1010, 1372)]