77717920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:483

約数の個数: 144

約数和(自身を含む): 223388928

約数和(自身を除く): 145671008

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 160, 161, 184, 196, 224, 230, 245, 280, 322, 368, 392, 431, 460, 490, 560, 644, 736, 784, 805, 862, 920, 980, 1120, 1127, 1288, 1568, 1610, 1724, 1840, 1960, 2155, 2254, 2576, 3017, 3220, 3448, 3680, 3920, 4310, 4508, 5152, 5635, 6034, 6440, 6896, 7840, 8620, 9016, 9913, 11270, 12068, 12880, 13792, 15085, 17240, 18032, 19826, 21119, 22540, 24136, 25760, 30170, 34480, 36064, 39652, 42238, 45080, 48272, 49565, 60340, 68960, 69391, 79304, 84476, 90160, 96544, 99130, 105595, 120680, 138782, 158608, 168952, 180320, 198260, 211190, 241360, 277564, 317216, 337904, 346955, 396520, 422380, 482720, 485737, 555128, 675808, 693910, 793040, 844760, 971474, 1110256, 1387820, 1586080, 1689520, 1942948, 2220512, 2428685, 2775640, 3379040, 3885896, 4857370, 5551280, 7771792, 9714740, 11102560, 15543584, 19429480, 38858960, 77717920]

約数ペア:

[(1, 77717920), (2, 38858960), (4, 19429480), (5, 15543584), (7, 11102560), (8, 9714740), (10, 7771792), (14, 5551280), (16, 4857370), (20, 3885896), (23, 3379040), (28, 2775640), (32, 2428685), (35, 2220512), (40, 1942948), (46, 1689520), (49, 1586080), (56, 1387820), (70, 1110256), (80, 971474), (92, 844760), (98, 793040), (112, 693910), (115, 675808), (140, 555128), (160, 485737), (161, 482720), (184, 422380), (196, 396520), (224, 346955), (230, 337904), (245, 317216), (280, 277564), (322, 241360), (368, 211190), (392, 198260), (431, 180320), (460, 168952), (490, 158608), (560, 138782), (644, 120680), (736, 105595), (784, 99130), (805, 96544), (862, 90160), (920, 84476), (980, 79304), (1120, 69391), (1127, 68960), (1288, 60340), (1568, 49565), (1610, 48272), (1724, 45080), (1840, 42238), (1960, 39652), (2155, 36064), (2254, 34480), (2576, 30170), (3017, 25760), (3220, 24136), (3448, 22540), (3680, 21119), (3920, 19826), (4310, 18032), (4508, 17240), (5152, 15085), (5635, 13792), (6034, 12880), (6440, 12068), (6896, 11270), (7840, 9913), (8620, 9016)]