12915100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{199}}^1$

素因数の和:283

約数の個数: 72

約数和(自身を含む): 31248000

約数和(自身を除く): 18332900

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 59, 100, 110, 118, 199, 220, 236, 275, 295, 398, 550, 590, 649, 796, 995, 1100, 1180, 1298, 1475, 1990, 2189, 2596, 2950, 3245, 3980, 4378, 4975, 5900, 6490, 8756, 9950, 10945, 11741, 12980, 16225, 19900, 21890, 23482, 32450, 43780, 46964, 54725, 58705, 64900, 109450, 117410, 129151, 218900, 234820, 258302, 293525, 516604, 587050, 645755, 1174100, 1291510, 2583020, 3228775, 6457550, 12915100]

約数ペア:

[(1, 12915100), (2, 6457550), (4, 3228775), (5, 2583020), (10, 1291510), (11, 1174100), (20, 645755), (22, 587050), (25, 516604), (44, 293525), (50, 258302), (55, 234820), (59, 218900), (100, 129151), (110, 117410), (118, 109450), (199, 64900), (220, 58705), (236, 54725), (275, 46964), (295, 43780), (398, 32450), (550, 23482), (590, 21890), (649, 19900), (796, 16225), (995, 12980), (1100, 11741), (1180, 10945), (1298, 9950), (1475, 8756), (1990, 6490), (2189, 5900), (2596, 4975), (2950, 4378), (3245, 3980)]