40914400

素因数分解:

$2^5\times 5^2\times {\mathrm{199}}^1\times {\mathrm{257}}^1$

素因数の和:476

約数の個数: 72

約数和(自身を含む): 100774800

約数和(自身を除く): 59860400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 199, 200, 257, 398, 400, 514, 796, 800, 995, 1028, 1285, 1592, 1990, 2056, 2570, 3184, 3980, 4112, 4975, 5140, 6368, 6425, 7960, 8224, 9950, 10280, 12850, 15920, 19900, 20560, 25700, 31840, 39800, 41120, 51143, 51400, 79600, 102286, 102800, 159200, 204572, 205600, 255715, 409144, 511430, 818288, 1022860, 1278575, 1636576, 2045720, 2557150, 4091440, 5114300, 8182880, 10228600, 20457200, 40914400]

約数ペア:

[(1, 40914400), (2, 20457200), (4, 10228600), (5, 8182880), (8, 5114300), (10, 4091440), (16, 2557150), (20, 2045720), (25, 1636576), (32, 1278575), (40, 1022860), (50, 818288), (80, 511430), (100, 409144), (160, 255715), (199, 205600), (200, 204572), (257, 159200), (398, 102800), (400, 102286), (514, 79600), (796, 51400), (800, 51143), (995, 41120), (1028, 39800), (1285, 31840), (1592, 25700), (1990, 20560), (2056, 19900), (2570, 15920), (3184, 12850), (3980, 10280), (4112, 9950), (4975, 8224), (5140, 7960), (6368, 6425)]