990328976

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{593}}^1$

素因数の和:689

約数の個数: 160

約数和(自身を含む): 2507839488

約数和(自身を除く): 1517510512

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 31, 37, 52, 56, 62, 74, 91, 104, 112, 124, 148, 182, 208, 217, 248, 259, 296, 364, 403, 434, 481, 496, 518, 592, 593, 728, 806, 868, 962, 1036, 1147, 1186, 1456, 1612, 1736, 1924, 2072, 2294, 2372, 2821, 3224, 3367, 3472, 3848, 4144, 4151, 4588, 4744, 5642, 6448, 6734, 7696, 7709, 8029, 8302, 9176, 9488, 11284, 13468, 14911, 15418, 16058, 16604, 18352, 18383, 21941, 22568, 26936, 29822, 30836, 32116, 33208, 36766, 43882, 45136, 53872, 53963, 59644, 61672, 64232, 66416, 73532, 87764, 104377, 107926, 119288, 123344, 128464, 128681, 147064, 153587, 175528, 208754, 215852, 238576, 238979, 257362, 285233, 294128, 307174, 351056, 417508, 431704, 477958, 514724, 570466, 614348, 680171, 835016, 863408, 955916, 1029448, 1140932, 1228696, 1360342, 1670032, 1672853, 1911832, 1996631, 2058896, 2281864, 2457392, 2720684, 3345706, 3823664, 3993262, 4563728, 4761197, 5441368, 6691412, 7986524, 8842223, 9522394, 10882736, 13382824, 15973048, 17684446, 19044788, 26765648, 31946096, 35368892, 38089576, 61895561, 70737784, 76179152, 123791122, 141475568, 247582244, 495164488, 990328976]

約数ペア:

[(1, 990328976), (2, 495164488), (4, 247582244), (7, 141475568), (8, 123791122), (13, 76179152), (14, 70737784), (16, 61895561), (26, 38089576), (28, 35368892), (31, 31946096), (37, 26765648), (52, 19044788), (56, 17684446), (62, 15973048), (74, 13382824), (91, 10882736), (104, 9522394), (112, 8842223), (124, 7986524), (148, 6691412), (182, 5441368), (208, 4761197), (217, 4563728), (248, 3993262), (259, 3823664), (296, 3345706), (364, 2720684), (403, 2457392), (434, 2281864), (481, 2058896), (496, 1996631), (518, 1911832), (592, 1672853), (593, 1670032), (728, 1360342), (806, 1228696), (868, 1140932), (962, 1029448), (1036, 955916), (1147, 863408), (1186, 835016), (1456, 680171), (1612, 614348), (1736, 570466), (1924, 514724), (2072, 477958), (2294, 431704), (2372, 417508), (2821, 351056), (3224, 307174), (3367, 294128), (3472, 285233), (3848, 257362), (4144, 238979), (4151, 238576), (4588, 215852), (4744, 208754), (5642, 175528), (6448, 153587), (6734, 147064), (7696, 128681), (7709, 128464), (8029, 123344), (8302, 119288), (9176, 107926), (9488, 104377), (11284, 87764), (13468, 73532), (14911, 66416), (15418, 64232), (16058, 61672), (16604, 59644), (18352, 53963), (18383, 53872), (21941, 45136), (22568, 43882), (26936, 36766), (29822, 33208), (30836, 32116)]