20261880

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{257}}^1$

素因数の和:350

約数の個数: 128

約数和(自身を含む): 68731200

約数和(自身を除く): 48469320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 73, 90, 108, 120, 135, 146, 180, 216, 219, 257, 270, 292, 360, 365, 438, 514, 540, 584, 657, 730, 771, 876, 1028, 1080, 1095, 1285, 1314, 1460, 1542, 1752, 1971, 2056, 2190, 2313, 2570, 2628, 2920, 3084, 3285, 3855, 3942, 4380, 4626, 5140, 5256, 6168, 6570, 6939, 7710, 7884, 8760, 9252, 9855, 10280, 11565, 13140, 13878, 15420, 15768, 18504, 18761, 19710, 23130, 26280, 27756, 30840, 34695, 37522, 39420, 46260, 55512, 56283, 69390, 75044, 78840, 92520, 93805, 112566, 138780, 150088, 168849, 187610, 225132, 277560, 281415, 337698, 375220, 450264, 506547, 562830, 675396, 750440, 844245, 1013094, 1125660, 1350792, 1688490, 2026188, 2251320, 2532735, 3376980, 4052376, 5065470, 6753960, 10130940, 20261880]

約数ペア:

[(1, 20261880), (2, 10130940), (3, 6753960), (4, 5065470), (5, 4052376), (6, 3376980), (8, 2532735), (9, 2251320), (10, 2026188), (12, 1688490), (15, 1350792), (18, 1125660), (20, 1013094), (24, 844245), (27, 750440), (30, 675396), (36, 562830), (40, 506547), (45, 450264), (54, 375220), (60, 337698), (72, 281415), (73, 277560), (90, 225132), (108, 187610), (120, 168849), (135, 150088), (146, 138780), (180, 112566), (216, 93805), (219, 92520), (257, 78840), (270, 75044), (292, 69390), (360, 56283), (365, 55512), (438, 46260), (514, 39420), (540, 37522), (584, 34695), (657, 30840), (730, 27756), (771, 26280), (876, 23130), (1028, 19710), (1080, 18761), (1095, 18504), (1285, 15768), (1314, 15420), (1460, 13878), (1542, 13140), (1752, 11565), (1971, 10280), (2056, 9855), (2190, 9252), (2313, 8760), (2570, 7884), (2628, 7710), (2920, 6939), (3084, 6570), (3285, 6168), (3855, 5256), (3942, 5140), (4380, 4626)]