90271340

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{283}}^1\times {\mathrm{389}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 195380640

約数和(自身を除く): 105109300

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 283, 389, 410, 566, 778, 820, 1132, 1415, 1556, 1945, 2830, 3890, 5660, 7780, 11603, 15949, 23206, 31898, 46412, 58015, 63796, 79745, 110087, 116030, 159490, 220174, 232060, 318980, 440348, 550435, 1100870, 2201740, 4513567, 9027134, 18054268, 22567835, 45135670, 90271340]

約数ペア:

[(1, 90271340), (2, 45135670), (4, 22567835), (5, 18054268), (10, 9027134), (20, 4513567), (41, 2201740), (82, 1100870), (164, 550435), (205, 440348), (283, 318980), (389, 232060), (410, 220174), (566, 159490), (778, 116030), (820, 110087), (1132, 79745), (1415, 63796), (1556, 58015), (1945, 46412), (2830, 31898), (3890, 23206), (5660, 15949), (7780, 11603)]