1215557120

素因数分解:

$2^9\times 5^1\times {\mathrm{17}}^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:141

約数の個数: 240

約数和(自身を含む): 3256184448

約数和(自身を除く): 2040627328

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 32, 34, 40, 53, 62, 64, 68, 80, 85, 106, 124, 128, 136, 155, 160, 170, 212, 248, 256, 265, 272, 289, 310, 320, 340, 424, 496, 512, 527, 530, 544, 578, 620, 640, 680, 848, 901, 992, 1054, 1060, 1088, 1156, 1240, 1280, 1360, 1445, 1643, 1696, 1802, 1984, 2108, 2120, 2176, 2312, 2480, 2560, 2635, 2720, 2890, 3286, 3392, 3604, 3968, 4216, 4240, 4352, 4505, 4624, 4960, 5270, 5440, 5780, 6572, 6784, 7208, 7936, 8215, 8432, 8480, 8704, 8959, 9010, 9248, 9920, 10540, 10880, 11560, 13144, 13568, 14416, 15317, 15872, 16430, 16864, 16960, 17918, 18020, 18496, 19840, 21080, 21760, 23120, 26288, 27136, 27931, 28832, 30634, 32860, 33728, 33920, 35836, 36040, 36992, 39680, 42160, 43520, 44795, 46240, 52576, 55862, 57664, 61268, 65720, 67456, 67840, 71672, 72080, 73984, 76585, 79360, 84320, 89590, 92480, 105152, 111724, 115328, 122536, 131440, 134912, 135680, 139655, 143344, 144160, 147968, 153170, 168640, 179180, 184960, 210304, 223448, 230656, 245072, 262880, 269824, 279310, 286688, 288320, 306340, 337280, 358360, 369920, 420608, 446896, 461312, 474827, 490144, 525760, 558620, 573376, 576640, 612680, 674560, 716720, 739840, 841216, 893792, 949654, 980288, 1051520, 1117240, 1146752, 1153280, 1225360, 1349120, 1433440, 1787584, 1899308, 1960576, 2103040, 2234480, 2293504, 2306560, 2374135, 2450720, 2866880, 3575168, 3798616, 3921152, 4206080, 4468960, 4587008, 4748270, 4901440, 5733760, 7150336, 7597232, 7842304, 8937920, 9496540, 9802880, 11467520, 14300672, 15194464, 17875840, 18993080, 19605760, 22935040, 30388928, 35751680, 37986160, 39211520, 60777856, 71503360, 75972320, 121555712, 151944640, 243111424, 303889280, 607778560, 1215557120]

約数ペア:

[(1, 1215557120), (2, 607778560), (4, 303889280), (5, 243111424), (8, 151944640), (10, 121555712), (16, 75972320), (17, 71503360), (20, 60777856), (31, 39211520), (32, 37986160), (34, 35751680), (40, 30388928), (53, 22935040), (62, 19605760), (64, 18993080), (68, 17875840), (80, 15194464), (85, 14300672), (106, 11467520), (124, 9802880), (128, 9496540), (136, 8937920), (155, 7842304), (160, 7597232), (170, 7150336), (212, 5733760), (248, 4901440), (256, 4748270), (265, 4587008), (272, 4468960), (289, 4206080), (310, 3921152), (320, 3798616), (340, 3575168), (424, 2866880), (496, 2450720), (512, 2374135), (527, 2306560), (530, 2293504), (544, 2234480), (578, 2103040), (620, 1960576), (640, 1899308), (680, 1787584), (848, 1433440), (901, 1349120), (992, 1225360), (1054, 1153280), (1060, 1146752), (1088, 1117240), (1156, 1051520), (1240, 980288), (1280, 949654), (1360, 893792), (1445, 841216), (1643, 739840), (1696, 716720), (1802, 674560), (1984, 612680), (2108, 576640), (2120, 573376), (2176, 558620), (2312, 525760), (2480, 490144), (2560, 474827), (2635, 461312), (2720, 446896), (2890, 420608), (3286, 369920), (3392, 358360), (3604, 337280), (3968, 306340), (4216, 288320), (4240, 286688), (4352, 279310), (4505, 269824), (4624, 262880), (4960, 245072), (5270, 230656), (5440, 223448), (5780, 210304), (6572, 184960), (6784, 179180), (7208, 168640), (7936, 153170), (8215, 147968), (8432, 144160), (8480, 143344), (8704, 139655), (8959, 135680), (9010, 134912), (9248, 131440), (9920, 122536), (10540, 115328), (10880, 111724), (11560, 105152), (13144, 92480), (13568, 89590), (14416, 84320), (15317, 79360), (15872, 76585), (16430, 73984), (16864, 72080), (16960, 71672), (17918, 67840), (18020, 67456), (18496, 65720), (19840, 61268), (21080, 57664), (21760, 55862), (23120, 52576), (26288, 46240), (27136, 44795), (27931, 43520), (28832, 42160), (30634, 39680), (32860, 36992), (33728, 36040), (33920, 35836)]