31063900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:443

約数の個数: 72

約数和(自身を含む): 77772800

約数和(自身を除く): 46708900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 199, 223, 350, 398, 446, 700, 796, 892, 995, 1115, 1393, 1561, 1990, 2230, 2786, 3122, 3980, 4460, 4975, 5572, 5575, 6244, 6965, 7805, 9950, 11150, 13930, 15610, 19900, 22300, 27860, 31220, 34825, 39025, 44377, 69650, 78050, 88754, 139300, 156100, 177508, 221885, 310639, 443770, 621278, 887540, 1109425, 1242556, 1553195, 2218850, 3106390, 4437700, 6212780, 7765975, 15531950, 31063900]

約数ペア:

[(1, 31063900), (2, 15531950), (4, 7765975), (5, 6212780), (7, 4437700), (10, 3106390), (14, 2218850), (20, 1553195), (25, 1242556), (28, 1109425), (35, 887540), (50, 621278), (70, 443770), (100, 310639), (140, 221885), (175, 177508), (199, 156100), (223, 139300), (350, 88754), (398, 78050), (446, 69650), (700, 44377), (796, 39025), (892, 34825), (995, 31220), (1115, 27860), (1393, 22300), (1561, 19900), (1990, 15610), (2230, 13930), (2786, 11150), (3122, 9950), (3980, 7805), (4460, 6965), (4975, 6244), (5572, 5575)]