256792560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{167}}^1$

素因数の和:375

約数の個数: 160

約数和(自身を含む): 824947200

約数和(自身を除く): 568154640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 43, 48, 60, 80, 86, 120, 129, 149, 167, 172, 215, 240, 258, 298, 334, 344, 430, 447, 501, 516, 596, 645, 668, 688, 745, 835, 860, 894, 1002, 1032, 1192, 1290, 1336, 1490, 1670, 1720, 1788, 2004, 2064, 2235, 2384, 2505, 2580, 2672, 2980, 3340, 3440, 3576, 4008, 4470, 5010, 5160, 5960, 6407, 6680, 7152, 7181, 8016, 8940, 10020, 10320, 11920, 12814, 13360, 14362, 17880, 19221, 20040, 21543, 24883, 25628, 28724, 32035, 35760, 35905, 38442, 40080, 43086, 49766, 51256, 57448, 64070, 71810, 74649, 76884, 86172, 96105, 99532, 102512, 107715, 114896, 124415, 128140, 143620, 149298, 153768, 172344, 192210, 199064, 215430, 248830, 256280, 287240, 298596, 307536, 344688, 373245, 384420, 398128, 430860, 497660, 512560, 574480, 597192, 746490, 768840, 861720, 995320, 1069969, 1194384, 1492980, 1537680, 1723440, 1990640, 2139938, 2985960, 3209907, 4279876, 5349845, 5971920, 6419814, 8559752, 10699690, 12839628, 16049535, 17119504, 21399380, 25679256, 32099070, 42798760, 51358512, 64198140, 85597520, 128396280, 256792560]

約数ペア:

[(1, 256792560), (2, 128396280), (3, 85597520), (4, 64198140), (5, 51358512), (6, 42798760), (8, 32099070), (10, 25679256), (12, 21399380), (15, 17119504), (16, 16049535), (20, 12839628), (24, 10699690), (30, 8559752), (40, 6419814), (43, 5971920), (48, 5349845), (60, 4279876), (80, 3209907), (86, 2985960), (120, 2139938), (129, 1990640), (149, 1723440), (167, 1537680), (172, 1492980), (215, 1194384), (240, 1069969), (258, 995320), (298, 861720), (334, 768840), (344, 746490), (430, 597192), (447, 574480), (501, 512560), (516, 497660), (596, 430860), (645, 398128), (668, 384420), (688, 373245), (745, 344688), (835, 307536), (860, 298596), (894, 287240), (1002, 256280), (1032, 248830), (1192, 215430), (1290, 199064), (1336, 192210), (1490, 172344), (1670, 153768), (1720, 149298), (1788, 143620), (2004, 128140), (2064, 124415), (2235, 114896), (2384, 107715), (2505, 102512), (2580, 99532), (2672, 96105), (2980, 86172), (3340, 76884), (3440, 74649), (3576, 71810), (4008, 64070), (4470, 57448), (5010, 51256), (5160, 49766), (5960, 43086), (6407, 40080), (6680, 38442), (7152, 35905), (7181, 35760), (8016, 32035), (8940, 28724), (10020, 25628), (10320, 24883), (11920, 21543), (12814, 20040), (13360, 19221), (14362, 17880)]