28257840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3019}}^1$

素因数の和:3051

約数の個数: 120

約数和(自身を含む): 102233040

約数和(自身を除く): 73975200

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1560, 1872, 2340, 3019, 3120, 4680, 6038, 9057, 9360, 12076, 15095, 18114, 24152, 27171, 30190, 36228, 39247, 45285, 48304, 54342, 60380, 72456, 78494, 90570, 108684, 117741, 120760, 135855, 144912, 156988, 181140, 196235, 217368, 235482, 241520, 271710, 313976, 353223, 362280, 392470, 434736, 470964, 543420, 588705, 627952, 706446, 724560, 784940, 941928, 1086840, 1177410, 1412892, 1569880, 1766115, 1883856, 2173680, 2354820, 2825784, 3139760, 3532230, 4709640, 5651568, 7064460, 9419280, 14128920, 28257840]

約数ペア:

[(1, 28257840), (2, 14128920), (3, 9419280), (4, 7064460), (5, 5651568), (6, 4709640), (8, 3532230), (9, 3139760), (10, 2825784), (12, 2354820), (13, 2173680), (15, 1883856), (16, 1766115), (18, 1569880), (20, 1412892), (24, 1177410), (26, 1086840), (30, 941928), (36, 784940), (39, 724560), (40, 706446), (45, 627952), (48, 588705), (52, 543420), (60, 470964), (65, 434736), (72, 392470), (78, 362280), (80, 353223), (90, 313976), (104, 271710), (117, 241520), (120, 235482), (130, 217368), (144, 196235), (156, 181140), (180, 156988), (195, 144912), (208, 135855), (234, 120760), (240, 117741), (260, 108684), (312, 90570), (360, 78494), (390, 72456), (468, 60380), (520, 54342), (585, 48304), (624, 45285), (720, 39247), (780, 36228), (936, 30190), (1040, 27171), (1170, 24152), (1560, 18114), (1872, 15095), (2340, 12076), (3019, 9360), (3120, 9057), (4680, 6038)]