21743750

素因数分解:

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

素因数の和:112

約数の個数: 72

約数和(自身を含む): 48090672

約数和(自身を除く): 26346922

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 70, 71, 98, 125, 142, 175, 245, 250, 350, 355, 490, 497, 625, 710, 875, 994, 1225, 1250, 1750, 1775, 2450, 2485, 3125, 3479, 3550, 4375, 4970, 6125, 6250, 6958, 8750, 8875, 12250, 12425, 17395, 17750, 21875, 24850, 30625, 34790, 43750, 44375, 61250, 62125, 86975, 88750, 124250, 153125, 173950, 221875, 306250, 310625, 434875, 443750, 621250, 869750, 1553125, 2174375, 3106250, 4348750, 10871875, 21743750]

約数ペア:

[(1, 21743750), (2, 10871875), (5, 4348750), (7, 3106250), (10, 2174375), (14, 1553125), (25, 869750), (35, 621250), (49, 443750), (50, 434875), (70, 310625), (71, 306250), (98, 221875), (125, 173950), (142, 153125), (175, 124250), (245, 88750), (250, 86975), (350, 62125), (355, 61250), (490, 44375), (497, 43750), (625, 34790), (710, 30625), (875, 24850), (994, 21875), (1225, 17750), (1250, 17395), (1750, 12425), (1775, 12250), (2450, 8875), (2485, 8750), (3125, 6958), (3479, 6250), (3550, 6125), (4375, 4970)]