2099697520

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{389}}^1\times {\mathrm{619}}^1$

素因数の和:1130

約数の個数: 80

約数和(自身を含む): 4947228000

約数和(自身を除く): 2847530480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 389, 436, 545, 619, 778, 872, 1090, 1238, 1556, 1744, 1945, 2180, 2476, 3095, 3112, 3890, 4360, 4952, 6190, 6224, 7780, 8720, 9904, 12380, 15560, 24760, 31120, 42401, 49520, 67471, 84802, 134942, 169604, 212005, 240791, 269884, 337355, 339208, 424010, 481582, 539768, 674710, 678416, 848020, 963164, 1079536, 1203955, 1349420, 1696040, 1926328, 2407910, 2698840, 3392080, 3852656, 4815820, 5397680, 9631640, 19263280, 26246219, 52492438, 104984876, 131231095, 209969752, 262462190, 419939504, 524924380, 1049848760, 2099697520]

約数ペア:

[(1, 2099697520), (2, 1049848760), (4, 524924380), (5, 419939504), (8, 262462190), (10, 209969752), (16, 131231095), (20, 104984876), (40, 52492438), (80, 26246219), (109, 19263280), (218, 9631640), (389, 5397680), (436, 4815820), (545, 3852656), (619, 3392080), (778, 2698840), (872, 2407910), (1090, 1926328), (1238, 1696040), (1556, 1349420), (1744, 1203955), (1945, 1079536), (2180, 963164), (2476, 848020), (3095, 678416), (3112, 674710), (3890, 539768), (4360, 481582), (4952, 424010), (6190, 339208), (6224, 337355), (7780, 269884), (8720, 240791), (9904, 212005), (12380, 169604), (15560, 134942), (24760, 84802), (31120, 67471), (42401, 49520)]