19403280

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{691}}^1$

素因数の和:726

約数の個数: 160

約数和(自身を含む): 72078720

約数和(自身を除く): 52675440

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, 90, 104, 108, 117, 120, 130, 135, 144, 156, 180, 195, 208, 216, 234, 240, 260, 270, 312, 351, 360, 390, 432, 468, 520, 540, 585, 624, 691, 702, 720, 780, 936, 1040, 1080, 1170, 1382, 1404, 1560, 1755, 1872, 2073, 2160, 2340, 2764, 2808, 3120, 3455, 3510, 4146, 4680, 5528, 5616, 6219, 6910, 7020, 8292, 8983, 9360, 10365, 11056, 12438, 13820, 14040, 16584, 17966, 18657, 20730, 24876, 26949, 27640, 28080, 31095, 33168, 35932, 37314, 41460, 44915, 49752, 53898, 55280, 62190, 71864, 74628, 80847, 82920, 89830, 93285, 99504, 107796, 124380, 134745, 143728, 149256, 161694, 165840, 179660, 186570, 215592, 242541, 248760, 269490, 298512, 323388, 359320, 373140, 404235, 431184, 485082, 497520, 538980, 646776, 718640, 746280, 808470, 970164, 1077960, 1212705, 1293552, 1492560, 1616940, 1940328, 2155920, 2425410, 3233880, 3880656, 4850820, 6467760, 9701640, 19403280]

約数ペア:

[(1, 19403280), (2, 9701640), (3, 6467760), (4, 4850820), (5, 3880656), (6, 3233880), (8, 2425410), (9, 2155920), (10, 1940328), (12, 1616940), (13, 1492560), (15, 1293552), (16, 1212705), (18, 1077960), (20, 970164), (24, 808470), (26, 746280), (27, 718640), (30, 646776), (36, 538980), (39, 497520), (40, 485082), (45, 431184), (48, 404235), (52, 373140), (54, 359320), (60, 323388), (65, 298512), (72, 269490), (78, 248760), (80, 242541), (90, 215592), (104, 186570), (108, 179660), (117, 165840), (120, 161694), (130, 149256), (135, 143728), (144, 134745), (156, 124380), (180, 107796), (195, 99504), (208, 93285), (216, 89830), (234, 82920), (240, 80847), (260, 74628), (270, 71864), (312, 62190), (351, 55280), (360, 53898), (390, 49752), (432, 44915), (468, 41460), (520, 37314), (540, 35932), (585, 33168), (624, 31095), (691, 28080), (702, 27640), (720, 26949), (780, 24876), (936, 20730), (1040, 18657), (1080, 17966), (1170, 16584), (1382, 14040), (1404, 13820), (1560, 12438), (1755, 11056), (1872, 10365), (2073, 9360), (2160, 8983), (2340, 8292), (2764, 7020), (2808, 6910), (3120, 6219), (3455, 5616), (3510, 5528), (4146, 4680)]