2028031408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1\times {\mathrm{769}}^1$

素因数の和:1230

約数の個数: 80

約数和(自身を含む): 4384441600

約数和(自身を除く): 2356410192

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 409, 496, 769, 806, 818, 1538, 1612, 1636, 3076, 3224, 3272, 5317, 6152, 6448, 6544, 9997, 10634, 12304, 12679, 19994, 21268, 23839, 25358, 39988, 42536, 47678, 50716, 79976, 85072, 95356, 101432, 159952, 164827, 190712, 202864, 309907, 314521, 329654, 381424, 619814, 629042, 659308, 1239628, 1258084, 1318616, 2479256, 2516168, 2637232, 4088773, 4958512, 5032336, 8177546, 9750151, 16355092, 19500302, 32710184, 39000604, 65420368, 78001208, 126751963, 156002416, 253503926, 507007852, 1014015704, 2028031408]

約数ペア:

[(1, 2028031408), (2, 1014015704), (4, 507007852), (8, 253503926), (13, 156002416), (16, 126751963), (26, 78001208), (31, 65420368), (52, 39000604), (62, 32710184), (104, 19500302), (124, 16355092), (208, 9750151), (248, 8177546), (403, 5032336), (409, 4958512), (496, 4088773), (769, 2637232), (806, 2516168), (818, 2479256), (1538, 1318616), (1612, 1258084), (1636, 1239628), (3076, 659308), (3224, 629042), (3272, 619814), (5317, 381424), (6152, 329654), (6448, 314521), (6544, 309907), (9997, 202864), (10634, 190712), (12304, 164827), (12679, 159952), (19994, 101432), (21268, 95356), (23839, 85072), (25358, 79976), (39988, 50716), (42536, 47678)]