1311185920

素因数分解:

$2^{10}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{751}}^1$

素因数の和:818

約数の個数: 176

約数和(自身を含む): 3546648576

約数和(自身を除く): 2235462656

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 110, 124, 128, 155, 160, 176, 220, 248, 256, 310, 320, 341, 352, 440, 496, 512, 620, 640, 682, 704, 751, 880, 992, 1024, 1240, 1280, 1364, 1408, 1502, 1705, 1760, 1984, 2480, 2560, 2728, 2816, 3004, 3410, 3520, 3755, 3968, 4960, 5120, 5456, 5632, 6008, 6820, 7040, 7510, 7936, 8261, 9920, 10912, 11264, 12016, 13640, 14080, 15020, 15872, 16522, 19840, 21824, 23281, 24032, 27280, 28160, 30040, 31744, 33044, 39680, 41305, 43648, 46562, 48064, 54560, 56320, 60080, 66088, 79360, 82610, 87296, 93124, 96128, 109120, 116405, 120160, 132176, 158720, 165220, 174592, 186248, 192256, 218240, 232810, 240320, 256091, 264352, 330440, 349184, 372496, 384512, 436480, 465620, 480640, 512182, 528704, 660880, 744992, 769024, 872960, 931240, 961280, 1024364, 1057408, 1280455, 1321760, 1489984, 1745920, 1862480, 1922560, 2048728, 2114816, 2560910, 2643520, 2979968, 3724960, 3845120, 4097456, 4229632, 5121820, 5287040, 5959936, 7449920, 8194912, 8459264, 10243640, 10574080, 11919872, 14899840, 16389824, 20487280, 21148160, 23839744, 29799680, 32779648, 40974560, 42296320, 59599360, 65559296, 81949120, 119198720, 131118592, 163898240, 262237184, 327796480, 655592960, 1311185920]

約数ペア:

[(1, 1311185920), (2, 655592960), (4, 327796480), (5, 262237184), (8, 163898240), (10, 131118592), (11, 119198720), (16, 81949120), (20, 65559296), (22, 59599360), (31, 42296320), (32, 40974560), (40, 32779648), (44, 29799680), (55, 23839744), (62, 21148160), (64, 20487280), (80, 16389824), (88, 14899840), (110, 11919872), (124, 10574080), (128, 10243640), (155, 8459264), (160, 8194912), (176, 7449920), (220, 5959936), (248, 5287040), (256, 5121820), (310, 4229632), (320, 4097456), (341, 3845120), (352, 3724960), (440, 2979968), (496, 2643520), (512, 2560910), (620, 2114816), (640, 2048728), (682, 1922560), (704, 1862480), (751, 1745920), (880, 1489984), (992, 1321760), (1024, 1280455), (1240, 1057408), (1280, 1024364), (1364, 961280), (1408, 931240), (1502, 872960), (1705, 769024), (1760, 744992), (1984, 660880), (2480, 528704), (2560, 512182), (2728, 480640), (2816, 465620), (3004, 436480), (3410, 384512), (3520, 372496), (3755, 349184), (3968, 330440), (4960, 264352), (5120, 256091), (5456, 240320), (5632, 232810), (6008, 218240), (6820, 192256), (7040, 186248), (7510, 174592), (7936, 165220), (8261, 158720), (9920, 132176), (10912, 120160), (11264, 116405), (12016, 109120), (13640, 96128), (14080, 93124), (15020, 87296), (15872, 82610), (16522, 79360), (19840, 66088), (21824, 60080), (23281, 56320), (24032, 54560), (27280, 48064), (28160, 46562), (30040, 43648), (31744, 41305), (33044, 39680)]