197471960

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:458

約数の個数: 128

約数和(自身を含む): 533520000

約数和(自身を除く): 336048040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 37, 40, 49, 56, 70, 74, 98, 140, 148, 185, 196, 245, 259, 280, 296, 343, 370, 389, 392, 490, 518, 686, 740, 778, 980, 1036, 1295, 1372, 1480, 1556, 1715, 1813, 1945, 1960, 2072, 2590, 2723, 2744, 3112, 3430, 3626, 3890, 5180, 5446, 6860, 7252, 7780, 9065, 10360, 10892, 12691, 13615, 13720, 14393, 14504, 15560, 18130, 19061, 21784, 25382, 27230, 28786, 36260, 38122, 50764, 54460, 57572, 63455, 71965, 72520, 76244, 95305, 100751, 101528, 108920, 115144, 126910, 133427, 143930, 152488, 190610, 201502, 253820, 266854, 287860, 381220, 403004, 503755, 507640, 533708, 575720, 667135, 705257, 762440, 806008, 1007510, 1067416, 1334270, 1410514, 2015020, 2668540, 2821028, 3526285, 4030040, 4936799, 5337080, 5642056, 7052570, 9873598, 14105140, 19747196, 24683995, 28210280, 39494392, 49367990, 98735980, 197471960]

約数ペア:

[(1, 197471960), (2, 98735980), (4, 49367990), (5, 39494392), (7, 28210280), (8, 24683995), (10, 19747196), (14, 14105140), (20, 9873598), (28, 7052570), (35, 5642056), (37, 5337080), (40, 4936799), (49, 4030040), (56, 3526285), (70, 2821028), (74, 2668540), (98, 2015020), (140, 1410514), (148, 1334270), (185, 1067416), (196, 1007510), (245, 806008), (259, 762440), (280, 705257), (296, 667135), (343, 575720), (370, 533708), (389, 507640), (392, 503755), (490, 403004), (518, 381220), (686, 287860), (740, 266854), (778, 253820), (980, 201502), (1036, 190610), (1295, 152488), (1372, 143930), (1480, 133427), (1556, 126910), (1715, 115144), (1813, 108920), (1945, 101528), (1960, 100751), (2072, 95305), (2590, 76244), (2723, 72520), (2744, 71965), (3112, 63455), (3430, 57572), (3626, 54460), (3890, 50764), (5180, 38122), (5446, 36260), (6860, 28786), (7252, 27230), (7780, 25382), (9065, 21784), (10360, 19061), (10892, 18130), (12691, 15560), (13615, 14504), (13720, 14393)]