209979440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{6449}}^1$

素因数の和:6510

約数の個数: 80

約数和(自身を含む): 547063200

約数和(自身を除く): 337083760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 37, 40, 44, 55, 74, 80, 88, 110, 148, 176, 185, 220, 296, 370, 407, 440, 592, 740, 814, 880, 1480, 1628, 2035, 2960, 3256, 4070, 6449, 6512, 8140, 12898, 16280, 25796, 32245, 32560, 51592, 64490, 70939, 103184, 128980, 141878, 238613, 257960, 283756, 354695, 477226, 515920, 567512, 709390, 954452, 1135024, 1193065, 1418780, 1908904, 2386130, 2624743, 2837560, 3817808, 4772260, 5249486, 5675120, 9544520, 10498972, 13123715, 19089040, 20997944, 26247430, 41995888, 52494860, 104989720, 209979440]

約数ペア:

[(1, 209979440), (2, 104989720), (4, 52494860), (5, 41995888), (8, 26247430), (10, 20997944), (11, 19089040), (16, 13123715), (20, 10498972), (22, 9544520), (37, 5675120), (40, 5249486), (44, 4772260), (55, 3817808), (74, 2837560), (80, 2624743), (88, 2386130), (110, 1908904), (148, 1418780), (176, 1193065), (185, 1135024), (220, 954452), (296, 709390), (370, 567512), (407, 515920), (440, 477226), (592, 354695), (740, 283756), (814, 257960), (880, 238613), (1480, 141878), (1628, 128980), (2035, 103184), (2960, 70939), (3256, 64490), (4070, 51592), (6449, 32560), (6512, 32245), (8140, 25796), (12898, 16280)]