31660900

素因数分解:

$2^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:293

約数の個数: 72

約数和(自身を含む): 72564800

約数和(自身を除く): 40903900

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 43, 50, 74, 86, 100, 148, 172, 185, 199, 215, 370, 398, 430, 740, 796, 860, 925, 995, 1075, 1591, 1850, 1990, 2150, 3182, 3700, 3980, 4300, 4975, 6364, 7363, 7955, 8557, 9950, 14726, 15910, 17114, 19900, 29452, 31820, 34228, 36815, 39775, 42785, 73630, 79550, 85570, 147260, 159100, 171140, 184075, 213925, 316609, 368150, 427850, 633218, 736300, 855700, 1266436, 1583045, 3166090, 6332180, 7915225, 15830450, 31660900]

約数ペア:

[(1, 31660900), (2, 15830450), (4, 7915225), (5, 6332180), (10, 3166090), (20, 1583045), (25, 1266436), (37, 855700), (43, 736300), (50, 633218), (74, 427850), (86, 368150), (100, 316609), (148, 213925), (172, 184075), (185, 171140), (199, 159100), (215, 147260), (370, 85570), (398, 79550), (430, 73630), (740, 42785), (796, 39775), (860, 36815), (925, 34228), (995, 31820), (1075, 29452), (1591, 19900), (1850, 17114), (1990, 15910), (2150, 14726), (3182, 9950), (3700, 8557), (3980, 7955), (4300, 7363), (4975, 6364)]