21048480

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{311}}^1$

素因数の和:379

約数の個数: 144

約数和(自身を含む): 73592064

約数和(自身を除く): 52543584

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 47, 48, 60, 72, 80, 90, 94, 96, 120, 141, 144, 160, 180, 188, 235, 240, 282, 288, 311, 360, 376, 423, 470, 480, 564, 622, 705, 720, 752, 846, 933, 940, 1128, 1244, 1410, 1440, 1504, 1555, 1692, 1866, 1880, 2115, 2256, 2488, 2799, 2820, 3110, 3384, 3732, 3760, 4230, 4512, 4665, 4976, 5598, 5640, 6220, 6768, 7464, 7520, 8460, 9330, 9952, 11196, 11280, 12440, 13536, 13995, 14617, 14928, 16920, 18660, 22392, 22560, 24880, 27990, 29234, 29856, 33840, 37320, 43851, 44784, 49760, 55980, 58468, 67680, 73085, 74640, 87702, 89568, 111960, 116936, 131553, 146170, 149280, 175404, 219255, 223920, 233872, 263106, 292340, 350808, 438510, 447840, 467744, 526212, 584680, 657765, 701616, 877020, 1052424, 1169360, 1315530, 1403232, 1754040, 2104848, 2338720, 2631060, 3508080, 4209696, 5262120, 7016160, 10524240, 21048480]

約数ペア:

[(1, 21048480), (2, 10524240), (3, 7016160), (4, 5262120), (5, 4209696), (6, 3508080), (8, 2631060), (9, 2338720), (10, 2104848), (12, 1754040), (15, 1403232), (16, 1315530), (18, 1169360), (20, 1052424), (24, 877020), (30, 701616), (32, 657765), (36, 584680), (40, 526212), (45, 467744), (47, 447840), (48, 438510), (60, 350808), (72, 292340), (80, 263106), (90, 233872), (94, 223920), (96, 219255), (120, 175404), (141, 149280), (144, 146170), (160, 131553), (180, 116936), (188, 111960), (235, 89568), (240, 87702), (282, 74640), (288, 73085), (311, 67680), (360, 58468), (376, 55980), (423, 49760), (470, 44784), (480, 43851), (564, 37320), (622, 33840), (705, 29856), (720, 29234), (752, 27990), (846, 24880), (933, 22560), (940, 22392), (1128, 18660), (1244, 16920), (1410, 14928), (1440, 14617), (1504, 13995), (1555, 13536), (1692, 12440), (1866, 11280), (1880, 11196), (2115, 9952), (2256, 9330), (2488, 8460), (2799, 7520), (2820, 7464), (3110, 6768), (3384, 6220), (3732, 5640), (3760, 5598), (4230, 4976), (4512, 4665)]