206821120

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{397}}^1$

素因数の和:466

約数の個数: 144

約数和(自身を含む): 556442208

約数和(自身を除く): 349621088

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 37, 40, 44, 55, 64, 74, 80, 88, 110, 128, 148, 160, 176, 185, 220, 256, 296, 320, 352, 370, 397, 407, 440, 592, 640, 704, 740, 794, 814, 880, 1184, 1280, 1408, 1480, 1588, 1628, 1760, 1985, 2035, 2368, 2816, 2960, 3176, 3256, 3520, 3970, 4070, 4367, 4736, 5920, 6352, 6512, 7040, 7940, 8140, 8734, 9472, 11840, 12704, 13024, 14080, 14689, 15880, 16280, 17468, 21835, 23680, 25408, 26048, 29378, 31760, 32560, 34936, 43670, 47360, 50816, 52096, 58756, 63520, 65120, 69872, 73445, 87340, 101632, 104192, 117512, 127040, 130240, 139744, 146890, 161579, 174680, 235024, 254080, 260480, 279488, 293780, 323158, 349360, 470048, 508160, 520960, 558976, 587560, 646316, 698720, 807895, 940096, 1117952, 1175120, 1292632, 1397440, 1615790, 1880192, 2350240, 2585264, 2794880, 3231580, 3760384, 4700480, 5170528, 5589760, 6463160, 9400960, 10341056, 12926320, 18801920, 20682112, 25852640, 41364224, 51705280, 103410560, 206821120]

約数ペア:

[(1, 206821120), (2, 103410560), (4, 51705280), (5, 41364224), (8, 25852640), (10, 20682112), (11, 18801920), (16, 12926320), (20, 10341056), (22, 9400960), (32, 6463160), (37, 5589760), (40, 5170528), (44, 4700480), (55, 3760384), (64, 3231580), (74, 2794880), (80, 2585264), (88, 2350240), (110, 1880192), (128, 1615790), (148, 1397440), (160, 1292632), (176, 1175120), (185, 1117952), (220, 940096), (256, 807895), (296, 698720), (320, 646316), (352, 587560), (370, 558976), (397, 520960), (407, 508160), (440, 470048), (592, 349360), (640, 323158), (704, 293780), (740, 279488), (794, 260480), (814, 254080), (880, 235024), (1184, 174680), (1280, 161579), (1408, 146890), (1480, 139744), (1588, 130240), (1628, 127040), (1760, 117512), (1985, 104192), (2035, 101632), (2368, 87340), (2816, 73445), (2960, 69872), (3176, 65120), (3256, 63520), (3520, 58756), (3970, 52096), (4070, 50816), (4367, 47360), (4736, 43670), (5920, 34936), (6352, 32560), (6512, 31760), (7040, 29378), (7940, 26048), (8140, 25408), (8734, 23680), (9472, 21835), (11840, 17468), (12704, 16280), (13024, 15880), (14080, 14689)]