28121040

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{277}}^1$

素因数の和:346

約数の個数: 160

約数和(自身を含む): 99279360

約数和(自身を除く): 71158320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 47, 48, 54, 60, 72, 80, 90, 94, 108, 120, 135, 141, 144, 180, 188, 216, 235, 240, 270, 277, 282, 360, 376, 423, 432, 470, 540, 554, 564, 705, 720, 752, 831, 846, 940, 1080, 1108, 1128, 1269, 1385, 1410, 1662, 1692, 1880, 2115, 2160, 2216, 2256, 2493, 2538, 2770, 2820, 3324, 3384, 3760, 4155, 4230, 4432, 4986, 5076, 5540, 5640, 6345, 6648, 6768, 7479, 8310, 8460, 9972, 10152, 11080, 11280, 12465, 12690, 13019, 13296, 14958, 16620, 16920, 19944, 20304, 22160, 24930, 25380, 26038, 29916, 33240, 33840, 37395, 39057, 39888, 49860, 50760, 52076, 59832, 65095, 66480, 74790, 78114, 99720, 101520, 104152, 117171, 119664, 130190, 149580, 156228, 195285, 199440, 208304, 234342, 260380, 299160, 312456, 351513, 390570, 468684, 520760, 585855, 598320, 624912, 703026, 781140, 937368, 1041520, 1171710, 1406052, 1562280, 1757565, 1874736, 2343420, 2812104, 3124560, 3515130, 4686840, 5624208, 7030260, 9373680, 14060520, 28121040]

約数ペア:

[(1, 28121040), (2, 14060520), (3, 9373680), (4, 7030260), (5, 5624208), (6, 4686840), (8, 3515130), (9, 3124560), (10, 2812104), (12, 2343420), (15, 1874736), (16, 1757565), (18, 1562280), (20, 1406052), (24, 1171710), (27, 1041520), (30, 937368), (36, 781140), (40, 703026), (45, 624912), (47, 598320), (48, 585855), (54, 520760), (60, 468684), (72, 390570), (80, 351513), (90, 312456), (94, 299160), (108, 260380), (120, 234342), (135, 208304), (141, 199440), (144, 195285), (180, 156228), (188, 149580), (216, 130190), (235, 119664), (240, 117171), (270, 104152), (277, 101520), (282, 99720), (360, 78114), (376, 74790), (423, 66480), (432, 65095), (470, 59832), (540, 52076), (554, 50760), (564, 49860), (705, 39888), (720, 39057), (752, 37395), (831, 33840), (846, 33240), (940, 29916), (1080, 26038), (1108, 25380), (1128, 24930), (1269, 22160), (1385, 20304), (1410, 19944), (1662, 16920), (1692, 16620), (1880, 14958), (2115, 13296), (2160, 13019), (2216, 12690), (2256, 12465), (2493, 11280), (2538, 11080), (2770, 10152), (2820, 9972), (3324, 8460), (3384, 8310), (3760, 7479), (4155, 6768), (4230, 6648), (4432, 6345), (4986, 5640), (5076, 5540)]