20841120

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{353}}^1$

素因数の和:415

約数の個数: 144

約数和(自身を含む): 73061352

約数和(自身を除く): 52220232

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 41, 45, 48, 60, 72, 80, 82, 90, 96, 120, 123, 144, 160, 164, 180, 205, 240, 246, 288, 328, 353, 360, 369, 410, 480, 492, 615, 656, 706, 720, 738, 820, 984, 1059, 1230, 1312, 1412, 1440, 1476, 1640, 1765, 1845, 1968, 2118, 2460, 2824, 2952, 3177, 3280, 3530, 3690, 3936, 4236, 4920, 5295, 5648, 5904, 6354, 6560, 7060, 7380, 8472, 9840, 10590, 11296, 11808, 12708, 14120, 14473, 14760, 15885, 16944, 19680, 21180, 25416, 28240, 28946, 29520, 31770, 33888, 42360, 43419, 50832, 56480, 57892, 59040, 63540, 72365, 84720, 86838, 101664, 115784, 127080, 130257, 144730, 169440, 173676, 217095, 231568, 254160, 260514, 289460, 347352, 434190, 463136, 508320, 521028, 578920, 651285, 694704, 868380, 1042056, 1157840, 1302570, 1389408, 1736760, 2084112, 2315680, 2605140, 3473520, 4168224, 5210280, 6947040, 10420560, 20841120]

約数ペア:

[(1, 20841120), (2, 10420560), (3, 6947040), (4, 5210280), (5, 4168224), (6, 3473520), (8, 2605140), (9, 2315680), (10, 2084112), (12, 1736760), (15, 1389408), (16, 1302570), (18, 1157840), (20, 1042056), (24, 868380), (30, 694704), (32, 651285), (36, 578920), (40, 521028), (41, 508320), (45, 463136), (48, 434190), (60, 347352), (72, 289460), (80, 260514), (82, 254160), (90, 231568), (96, 217095), (120, 173676), (123, 169440), (144, 144730), (160, 130257), (164, 127080), (180, 115784), (205, 101664), (240, 86838), (246, 84720), (288, 72365), (328, 63540), (353, 59040), (360, 57892), (369, 56480), (410, 50832), (480, 43419), (492, 42360), (615, 33888), (656, 31770), (706, 29520), (720, 28946), (738, 28240), (820, 25416), (984, 21180), (1059, 19680), (1230, 16944), (1312, 15885), (1412, 14760), (1440, 14473), (1476, 14120), (1640, 12708), (1765, 11808), (1845, 11296), (1968, 10590), (2118, 9840), (2460, 8472), (2824, 7380), (2952, 7060), (3177, 6560), (3280, 6354), (3530, 5904), (3690, 5648), (3936, 5295), (4236, 4920)]