23119820

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 50433600

約数和(自身を除く): 27313780

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 157, 185, 199, 314, 370, 398, 628, 740, 785, 796, 995, 1570, 1990, 3140, 3980, 5809, 7363, 11618, 14726, 23236, 29045, 29452, 31243, 36815, 58090, 62486, 73630, 116180, 124972, 147260, 156215, 312430, 624860, 1155991, 2311982, 4623964, 5779955, 11559910, 23119820]

約数ペア:

[(1, 23119820), (2, 11559910), (4, 5779955), (5, 4623964), (10, 2311982), (20, 1155991), (37, 624860), (74, 312430), (148, 156215), (157, 147260), (185, 124972), (199, 116180), (314, 73630), (370, 62486), (398, 58090), (628, 36815), (740, 31243), (785, 29452), (796, 29045), (995, 23236), (1570, 14726), (1990, 11618), (3140, 7363), (3980, 5809)]