71858900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:393

約数の個数: 72

約数和(自身を含む): 164572800

約数和(自身を除く): 92713900

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 157, 199, 230, 314, 398, 460, 575, 628, 785, 796, 995, 1150, 1570, 1990, 2300, 3140, 3611, 3925, 3980, 4577, 4975, 7222, 7850, 9154, 9950, 14444, 15700, 18055, 18308, 19900, 22885, 31243, 36110, 45770, 62486, 72220, 90275, 91540, 114425, 124972, 156215, 180550, 228850, 312430, 361100, 457700, 624860, 718589, 781075, 1437178, 1562150, 2874356, 3124300, 3592945, 7185890, 14371780, 17964725, 35929450, 71858900]

約数ペア:

[(1, 71858900), (2, 35929450), (4, 17964725), (5, 14371780), (10, 7185890), (20, 3592945), (23, 3124300), (25, 2874356), (46, 1562150), (50, 1437178), (92, 781075), (100, 718589), (115, 624860), (157, 457700), (199, 361100), (230, 312430), (314, 228850), (398, 180550), (460, 156215), (575, 124972), (628, 114425), (785, 91540), (796, 90275), (995, 72220), (1150, 62486), (1570, 45770), (1990, 36110), (2300, 31243), (3140, 22885), (3611, 19900), (3925, 18308), (3980, 18055), (4577, 15700), (4975, 14444), (7222, 9950), (7850, 9154)]