21277760

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:113

約数の個数: 168

約数和(自身を含む): 62544960

約数和(自身を除く): 41267200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 49, 56, 59, 64, 70, 80, 92, 98, 112, 115, 118, 140, 160, 161, 184, 196, 224, 230, 236, 245, 280, 295, 320, 322, 368, 392, 413, 448, 460, 472, 490, 560, 590, 644, 736, 784, 805, 826, 920, 944, 980, 1120, 1127, 1180, 1288, 1357, 1472, 1568, 1610, 1652, 1840, 1888, 1960, 2065, 2240, 2254, 2360, 2576, 2714, 2891, 3136, 3220, 3304, 3680, 3776, 3920, 4130, 4508, 4720, 5152, 5428, 5635, 5782, 6440, 6608, 6785, 7360, 7840, 8260, 9016, 9440, 9499, 10304, 10856, 11270, 11564, 12880, 13216, 13570, 14455, 15680, 16520, 18032, 18880, 18998, 21712, 22540, 23128, 25760, 26432, 27140, 28910, 33040, 36064, 37996, 43424, 45080, 46256, 47495, 51520, 54280, 57820, 66080, 66493, 72128, 75992, 86848, 90160, 92512, 94990, 108560, 115640, 132160, 132986, 151984, 180320, 185024, 189980, 217120, 231280, 265972, 303968, 332465, 360640, 379960, 434240, 462560, 531944, 607936, 664930, 759920, 925120, 1063888, 1329860, 1519840, 2127776, 2659720, 3039680, 4255552, 5319440, 10638880, 21277760]

約数ペア:

[(1, 21277760), (2, 10638880), (4, 5319440), (5, 4255552), (7, 3039680), (8, 2659720), (10, 2127776), (14, 1519840), (16, 1329860), (20, 1063888), (23, 925120), (28, 759920), (32, 664930), (35, 607936), (40, 531944), (46, 462560), (49, 434240), (56, 379960), (59, 360640), (64, 332465), (70, 303968), (80, 265972), (92, 231280), (98, 217120), (112, 189980), (115, 185024), (118, 180320), (140, 151984), (160, 132986), (161, 132160), (184, 115640), (196, 108560), (224, 94990), (230, 92512), (236, 90160), (245, 86848), (280, 75992), (295, 72128), (320, 66493), (322, 66080), (368, 57820), (392, 54280), (413, 51520), (448, 47495), (460, 46256), (472, 45080), (490, 43424), (560, 37996), (590, 36064), (644, 33040), (736, 28910), (784, 27140), (805, 26432), (826, 25760), (920, 23128), (944, 22540), (980, 21712), (1120, 18998), (1127, 18880), (1180, 18032), (1288, 16520), (1357, 15680), (1472, 14455), (1568, 13570), (1610, 13216), (1652, 12880), (1840, 11564), (1888, 11270), (1960, 10856), (2065, 10304), (2240, 9499), (2254, 9440), (2360, 9016), (2576, 8260), (2714, 7840), (2891, 7360), (3136, 6785), (3220, 6608), (3304, 6440), (3680, 5782), (3776, 5635), (3920, 5428), (4130, 5152), (4508, 4720)]