254076340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{25561}}^1$

素因数の和:25648

約数の個数: 48

約数和(自身を含む): 618395904

約数和(自身を除く): 364319564

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940, 25561, 51122, 102244, 127805, 178927, 255610, 357854, 511220, 715708, 894635, 1789270, 1814831, 3578540, 3629662, 7259324, 9074155, 12703817, 18148310, 25407634, 36296620, 50815268, 63519085, 127038170, 254076340]

約数ペア:

[(1, 254076340), (2, 127038170), (4, 63519085), (5, 50815268), (7, 36296620), (10, 25407634), (14, 18148310), (20, 12703817), (28, 9074155), (35, 7259324), (70, 3629662), (71, 3578540), (140, 1814831), (142, 1789270), (284, 894635), (355, 715708), (497, 511220), (710, 357854), (994, 255610), (1420, 178927), (1988, 127805), (2485, 102244), (4970, 51122), (9940, 25561)]