18997440

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1$

素因数の和:295

約数の個数: 224

約数和(自身を含む): 75492864

約数和(自身を除く): 56495424

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 32, 33, 35, 40, 42, 44, 48, 55, 56, 60, 64, 66, 70, 77, 80, 84, 88, 96, 105, 110, 112, 120, 132, 140, 154, 160, 165, 168, 176, 192, 210, 220, 224, 231, 240, 257, 264, 280, 308, 320, 330, 336, 352, 385, 420, 440, 448, 462, 480, 514, 528, 560, 616, 660, 672, 704, 770, 771, 840, 880, 924, 960, 1028, 1056, 1120, 1155, 1232, 1285, 1320, 1344, 1540, 1542, 1680, 1760, 1799, 1848, 2056, 2112, 2240, 2310, 2464, 2570, 2640, 2827, 3080, 3084, 3360, 3520, 3598, 3696, 3855, 4112, 4620, 4928, 5140, 5280, 5397, 5654, 6160, 6168, 6720, 7196, 7392, 7710, 8224, 8481, 8995, 9240, 10280, 10560, 10794, 11308, 12320, 12336, 14135, 14392, 14784, 15420, 16448, 16962, 17990, 18480, 19789, 20560, 21588, 22616, 24640, 24672, 26985, 28270, 28784, 30840, 33924, 35980, 36960, 39578, 41120, 42405, 43176, 45232, 49344, 53970, 56540, 57568, 59367, 61680, 67848, 71960, 73920, 79156, 82240, 84810, 86352, 90464, 98945, 107940, 113080, 115136, 118734, 123360, 135696, 143920, 158312, 169620, 172704, 180928, 197890, 215880, 226160, 237468, 246720, 271392, 287840, 296835, 316624, 339240, 345408, 395780, 431760, 452320, 474936, 542784, 575680, 593670, 633248, 678480, 791560, 863520, 904640, 949872, 1187340, 1266496, 1356960, 1583120, 1727040, 1899744, 2374680, 2713920, 3166240, 3799488, 4749360, 6332480, 9498720, 18997440]

約数ペア:

[(1, 18997440), (2, 9498720), (3, 6332480), (4, 4749360), (5, 3799488), (6, 3166240), (7, 2713920), (8, 2374680), (10, 1899744), (11, 1727040), (12, 1583120), (14, 1356960), (15, 1266496), (16, 1187340), (20, 949872), (21, 904640), (22, 863520), (24, 791560), (28, 678480), (30, 633248), (32, 593670), (33, 575680), (35, 542784), (40, 474936), (42, 452320), (44, 431760), (48, 395780), (55, 345408), (56, 339240), (60, 316624), (64, 296835), (66, 287840), (70, 271392), (77, 246720), (80, 237468), (84, 226160), (88, 215880), (96, 197890), (105, 180928), (110, 172704), (112, 169620), (120, 158312), (132, 143920), (140, 135696), (154, 123360), (160, 118734), (165, 115136), (168, 113080), (176, 107940), (192, 98945), (210, 90464), (220, 86352), (224, 84810), (231, 82240), (240, 79156), (257, 73920), (264, 71960), (280, 67848), (308, 61680), (320, 59367), (330, 57568), (336, 56540), (352, 53970), (385, 49344), (420, 45232), (440, 43176), (448, 42405), (462, 41120), (480, 39578), (514, 36960), (528, 35980), (560, 33924), (616, 30840), (660, 28784), (672, 28270), (704, 26985), (770, 24672), (771, 24640), (840, 22616), (880, 21588), (924, 20560), (960, 19789), (1028, 18480), (1056, 17990), (1120, 16962), (1155, 16448), (1232, 15420), (1285, 14784), (1320, 14392), (1344, 14135), (1540, 12336), (1542, 12320), (1680, 11308), (1760, 10794), (1799, 10560), (1848, 10280), (2056, 9240), (2112, 8995), (2240, 8481), (2310, 8224), (2464, 7710), (2570, 7392), (2640, 7196), (2827, 6720), (3080, 6168), (3084, 6160), (3360, 5654), (3520, 5397), (3598, 5280), (3696, 5140), (3855, 4928), (4112, 4620)]