18560880

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{661}}^1$

素因数の和:696

約数の個数: 160

約数和(自身を含む): 68953920

約数和(自身を除く): 50393040

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, 661, 702, 720, 780, 936, 1040, 1080, 1170, 1322, 1404, 1560, 1755, 1872, 1983, 2160, 2340, 2644, 2808, 3120, 3305, 3510, 3966, 4680, 5288, 5616, 5949, 6610, 7020, 7932, 8593, 9360, 9915, 10576, 11898, 13220, 14040, 15864, 17186, 17847, 19830, 23796, 25779, 26440, 28080, 29745, 31728, 34372, 35694, 39660, 42965, 47592, 51558, 52880, 59490, 68744, 71388, 77337, 79320, 85930, 89235, 95184, 103116, 118980, 128895, 137488, 142776, 154674, 158640, 171860, 178470, 206232, 232011, 237960, 257790, 285552, 309348, 343720, 356940, 386685, 412464, 464022, 475920, 515580, 618696, 687440, 713880, 773370, 928044, 1031160, 1160055, 1237392, 1427760, 1546740, 1856088, 2062320, 2320110, 3093480, 3712176, 4640220, 6186960, 9280440, 18560880]

約数ペア:

[(1, 18560880), (2, 9280440), (3, 6186960), (4, 4640220), (5, 3712176), (6, 3093480), (8, 2320110), (9, 2062320), (10, 1856088), (12, 1546740), (13, 1427760), (15, 1237392), (16, 1160055), (18, 1031160), (20, 928044), (24, 773370), (26, 713880), (27, 687440), (30, 618696), (36, 515580), (39, 475920), (40, 464022), (45, 412464), (48, 386685), (52, 356940), (54, 343720), (60, 309348), (65, 285552), (72, 257790), (78, 237960), (80, 232011), (90, 206232), (104, 178470), (108, 171860), (117, 158640), (120, 154674), (130, 142776), (135, 137488), (144, 128895), (156, 118980), (180, 103116), (195, 95184), (208, 89235), (216, 85930), (234, 79320), (240, 77337), (260, 71388), (270, 68744), (312, 59490), (351, 52880), (360, 51558), (390, 47592), (432, 42965), (468, 39660), (520, 35694), (540, 34372), (585, 31728), (624, 29745), (661, 28080), (702, 26440), (720, 25779), (780, 23796), (936, 19830), (1040, 17847), (1080, 17186), (1170, 15864), (1322, 14040), (1404, 13220), (1560, 11898), (1755, 10576), (1872, 9915), (1983, 9360), (2160, 8593), (2340, 7932), (2644, 7020), (2808, 6610), (3120, 5949), (3305, 5616), (3510, 5288), (3966, 4680)]