199975100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{773}}^1$

素因数の和:999

約数の個数: 72

約数和(自身を含む): 470282400

約数和(自身を除く): 270307300

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 199, 260, 325, 398, 650, 773, 796, 995, 1300, 1546, 1990, 2587, 3092, 3865, 3980, 4975, 5174, 7730, 9950, 10049, 10348, 12935, 15460, 19325, 19900, 20098, 25870, 38650, 40196, 50245, 51740, 64675, 77300, 100490, 129350, 153827, 200980, 251225, 258700, 307654, 502450, 615308, 769135, 1004900, 1538270, 1999751, 3076540, 3845675, 3999502, 7691350, 7999004, 9998755, 15382700, 19997510, 39995020, 49993775, 99987550, 199975100]

約数ペア:

[(1, 199975100), (2, 99987550), (4, 49993775), (5, 39995020), (10, 19997510), (13, 15382700), (20, 9998755), (25, 7999004), (26, 7691350), (50, 3999502), (52, 3845675), (65, 3076540), (100, 1999751), (130, 1538270), (199, 1004900), (260, 769135), (325, 615308), (398, 502450), (650, 307654), (773, 258700), (796, 251225), (995, 200980), (1300, 153827), (1546, 129350), (1990, 100490), (2587, 77300), (3092, 64675), (3865, 51740), (3980, 50245), (4975, 40196), (5174, 38650), (7730, 25870), (9950, 20098), (10049, 19900), (10348, 19325), (12935, 15460)]