640813680

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7607}}^1$

素因数の和:7645

約数の個数: 200

約数和(自身を含む): 2397159072

約数和(自身を除く): 1756345392

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 81, 90, 104, 108, 117, 120, 130, 135, 144, 156, 162, 180, 195, 208, 216, 234, 240, 260, 270, 312, 324, 351, 360, 390, 405, 432, 468, 520, 540, 585, 624, 648, 702, 720, 780, 810, 936, 1040, 1053, 1080, 1170, 1296, 1404, 1560, 1620, 1755, 1872, 2106, 2160, 2340, 2808, 3120, 3240, 3510, 4212, 4680, 5265, 5616, 6480, 7020, 7607, 8424, 9360, 10530, 14040, 15214, 16848, 21060, 22821, 28080, 30428, 38035, 42120, 45642, 60856, 68463, 76070, 84240, 91284, 98891, 114105, 121712, 136926, 152140, 182568, 197782, 205389, 228210, 273852, 296673, 304280, 342315, 365136, 395564, 410778, 456420, 494455, 547704, 593346, 608560, 616167, 684630, 791128, 821556, 890019, 912840, 988910, 1026945, 1095408, 1186692, 1232334, 1369260, 1483365, 1582256, 1643112, 1780038, 1825680, 1977820, 2053890, 2373384, 2464668, 2670057, 2738520, 2966730, 3080835, 3286224, 3560076, 3955640, 4107780, 4450095, 4746768, 4929336, 5340114, 5477040, 5933460, 6161670, 7120152, 7911280, 8010171, 8215560, 8900190, 9858672, 10680228, 11866920, 12323340, 13350285, 14240304, 16020342, 16431120, 17800380, 21360456, 23733840, 24646680, 26700570, 32040684, 35600760, 40050855, 42720912, 49293360, 53401140, 64081368, 71201520, 80101710, 106802280, 128162736, 160203420, 213604560, 320406840, 640813680]

約数ペア:

[(1, 640813680), (2, 320406840), (3, 213604560), (4, 160203420), (5, 128162736), (6, 106802280), (8, 80101710), (9, 71201520), (10, 64081368), (12, 53401140), (13, 49293360), (15, 42720912), (16, 40050855), (18, 35600760), (20, 32040684), (24, 26700570), (26, 24646680), (27, 23733840), (30, 21360456), (36, 17800380), (39, 16431120), (40, 16020342), (45, 14240304), (48, 13350285), (52, 12323340), (54, 11866920), (60, 10680228), (65, 9858672), (72, 8900190), (78, 8215560), (80, 8010171), (81, 7911280), (90, 7120152), (104, 6161670), (108, 5933460), (117, 5477040), (120, 5340114), (130, 4929336), (135, 4746768), (144, 4450095), (156, 4107780), (162, 3955640), (180, 3560076), (195, 3286224), (208, 3080835), (216, 2966730), (234, 2738520), (240, 2670057), (260, 2464668), (270, 2373384), (312, 2053890), (324, 1977820), (351, 1825680), (360, 1780038), (390, 1643112), (405, 1582256), (432, 1483365), (468, 1369260), (520, 1232334), (540, 1186692), (585, 1095408), (624, 1026945), (648, 988910), (702, 912840), (720, 890019), (780, 821556), (810, 791128), (936, 684630), (1040, 616167), (1053, 608560), (1080, 593346), (1170, 547704), (1296, 494455), (1404, 456420), (1560, 410778), (1620, 395564), (1755, 365136), (1872, 342315), (2106, 304280), (2160, 296673), (2340, 273852), (2808, 228210), (3120, 205389), (3240, 197782), (3510, 182568), (4212, 152140), (4680, 136926), (5265, 121712), (5616, 114105), (6480, 98891), (7020, 91284), (7607, 84240), (8424, 76070), (9360, 68463), (10530, 60856), (14040, 45642), (15214, 42120), (16848, 38035), (21060, 30428), (22821, 28080)]