755455720

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1\times {\mathrm{757}}^1$

素因数の和:1238

約数の個数: 64

約数和(自身を含む): 1734152400

約数和(自身を除く): 978696680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 409, 488, 610, 757, 818, 1220, 1514, 1636, 2045, 2440, 3028, 3272, 3785, 4090, 6056, 7570, 8180, 15140, 16360, 24949, 30280, 46177, 49898, 92354, 99796, 124745, 184708, 199592, 230885, 249490, 309613, 369416, 461770, 498980, 619226, 923540, 997960, 1238452, 1548065, 1847080, 2476904, 3096130, 6192260, 12384520, 18886393, 37772786, 75545572, 94431965, 151091144, 188863930, 377727860, 755455720]

約数ペア:

[(1, 755455720), (2, 377727860), (4, 188863930), (5, 151091144), (8, 94431965), (10, 75545572), (20, 37772786), (40, 18886393), (61, 12384520), (122, 6192260), (244, 3096130), (305, 2476904), (409, 1847080), (488, 1548065), (610, 1238452), (757, 997960), (818, 923540), (1220, 619226), (1514, 498980), (1636, 461770), (2045, 369416), (2440, 309613), (3028, 249490), (3272, 230885), (3785, 199592), (4090, 184708), (6056, 124745), (7570, 99796), (8180, 92354), (15140, 49898), (16360, 46177), (24949, 30280)]