281638720

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:177

約数の個数: 224

約数和(自身を含む): 790041600

約数和(自身を除く): 508402880

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 31, 32, 40, 44, 55, 58, 62, 64, 80, 88, 89, 110, 116, 124, 145, 155, 160, 176, 178, 220, 232, 248, 290, 310, 319, 320, 341, 352, 356, 440, 445, 464, 496, 580, 620, 638, 682, 704, 712, 880, 890, 899, 928, 979, 992, 1160, 1240, 1276, 1364, 1424, 1595, 1705, 1760, 1780, 1798, 1856, 1958, 1984, 2320, 2480, 2552, 2581, 2728, 2759, 2848, 3190, 3410, 3520, 3560, 3596, 3916, 4495, 4640, 4895, 4960, 5104, 5162, 5456, 5518, 5696, 6380, 6820, 7120, 7192, 7832, 8990, 9280, 9790, 9889, 9920, 10208, 10324, 10912, 11036, 12760, 12905, 13640, 13795, 14240, 14384, 15664, 17980, 19580, 19778, 20416, 20648, 21824, 22072, 25520, 25810, 27280, 27590, 28391, 28480, 28768, 30349, 31328, 35960, 39160, 39556, 41296, 44144, 49445, 51040, 51620, 54560, 55180, 56782, 57536, 60698, 62656, 71920, 78320, 79112, 80011, 82592, 88288, 98890, 102080, 103240, 109120, 110360, 113564, 121396, 141955, 143840, 151745, 156640, 158224, 160022, 165184, 176576, 197780, 206480, 220720, 227128, 242792, 283910, 287680, 303490, 313280, 316448, 320044, 395560, 400055, 412960, 441440, 454256, 485584, 567820, 606980, 632896, 640088, 791120, 800110, 825920, 880121, 882880, 908512, 971168, 1135640, 1213960, 1280176, 1582240, 1600220, 1760242, 1817024, 1942336, 2271280, 2427920, 2560352, 3164480, 3200440, 3520484, 4400605, 4542560, 4855840, 5120704, 6400880, 7040968, 8801210, 9085120, 9711680, 12801760, 14081936, 17602420, 25603520, 28163872, 35204840, 56327744, 70409680, 140819360, 281638720]

約数ペア:

[(1, 281638720), (2, 140819360), (4, 70409680), (5, 56327744), (8, 35204840), (10, 28163872), (11, 25603520), (16, 17602420), (20, 14081936), (22, 12801760), (29, 9711680), (31, 9085120), (32, 8801210), (40, 7040968), (44, 6400880), (55, 5120704), (58, 4855840), (62, 4542560), (64, 4400605), (80, 3520484), (88, 3200440), (89, 3164480), (110, 2560352), (116, 2427920), (124, 2271280), (145, 1942336), (155, 1817024), (160, 1760242), (176, 1600220), (178, 1582240), (220, 1280176), (232, 1213960), (248, 1135640), (290, 971168), (310, 908512), (319, 882880), (320, 880121), (341, 825920), (352, 800110), (356, 791120), (440, 640088), (445, 632896), (464, 606980), (496, 567820), (580, 485584), (620, 454256), (638, 441440), (682, 412960), (704, 400055), (712, 395560), (880, 320044), (890, 316448), (899, 313280), (928, 303490), (979, 287680), (992, 283910), (1160, 242792), (1240, 227128), (1276, 220720), (1364, 206480), (1424, 197780), (1595, 176576), (1705, 165184), (1760, 160022), (1780, 158224), (1798, 156640), (1856, 151745), (1958, 143840), (1984, 141955), (2320, 121396), (2480, 113564), (2552, 110360), (2581, 109120), (2728, 103240), (2759, 102080), (2848, 98890), (3190, 88288), (3410, 82592), (3520, 80011), (3560, 79112), (3596, 78320), (3916, 71920), (4495, 62656), (4640, 60698), (4895, 57536), (4960, 56782), (5104, 55180), (5162, 54560), (5456, 51620), (5518, 51040), (5696, 49445), (6380, 44144), (6820, 41296), (7120, 39556), (7192, 39160), (7832, 35960), (8990, 31328), (9280, 30349), (9790, 28768), (9889, 28480), (9920, 28391), (10208, 27590), (10324, 27280), (10912, 25810), (11036, 25520), (12760, 22072), (12905, 21824), (13640, 20648), (13795, 20416), (14240, 19778), (14384, 19580), (15664, 17980)]