79905980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:180

約数の個数: 144

約数和(自身を含む): 217183680

約数和(自身を除く): 137277700

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 53, 55, 70, 77, 89, 106, 110, 121, 140, 154, 178, 212, 220, 242, 265, 308, 356, 371, 385, 445, 484, 530, 583, 605, 623, 742, 770, 847, 890, 979, 1060, 1166, 1210, 1246, 1484, 1540, 1694, 1780, 1855, 1958, 2332, 2420, 2492, 2915, 3115, 3388, 3710, 3916, 4081, 4235, 4717, 4895, 5830, 6230, 6413, 6853, 7420, 8162, 8470, 9434, 9790, 10769, 11660, 12460, 12826, 13706, 16324, 16940, 18868, 19580, 20405, 21538, 23585, 25652, 27412, 32065, 33019, 34265, 40810, 43076, 44891, 47170, 51887, 53845, 64130, 66038, 68530, 75383, 81620, 89782, 94340, 103774, 107690, 128260, 132076, 137060, 150766, 165095, 179564, 207548, 215380, 224455, 259435, 301532, 330190, 363209, 376915, 448910, 518870, 570757, 660380, 726418, 753830, 897820, 1037740, 1141514, 1452836, 1507660, 1816045, 2283028, 2853785, 3632090, 3995299, 5707570, 7264180, 7990598, 11415140, 15981196, 19976495, 39952990, 79905980]

約数ペア:

[(1, 79905980), (2, 39952990), (4, 19976495), (5, 15981196), (7, 11415140), (10, 7990598), (11, 7264180), (14, 5707570), (20, 3995299), (22, 3632090), (28, 2853785), (35, 2283028), (44, 1816045), (53, 1507660), (55, 1452836), (70, 1141514), (77, 1037740), (89, 897820), (106, 753830), (110, 726418), (121, 660380), (140, 570757), (154, 518870), (178, 448910), (212, 376915), (220, 363209), (242, 330190), (265, 301532), (308, 259435), (356, 224455), (371, 215380), (385, 207548), (445, 179564), (484, 165095), (530, 150766), (583, 137060), (605, 132076), (623, 128260), (742, 107690), (770, 103774), (847, 94340), (890, 89782), (979, 81620), (1060, 75383), (1166, 68530), (1210, 66038), (1246, 64130), (1484, 53845), (1540, 51887), (1694, 47170), (1780, 44891), (1855, 43076), (1958, 40810), (2332, 34265), (2420, 33019), (2492, 32065), (2915, 27412), (3115, 25652), (3388, 23585), (3710, 21538), (3916, 20405), (4081, 19580), (4235, 18868), (4717, 16940), (4895, 16324), (5830, 13706), (6230, 12826), (6413, 12460), (6853, 11660), (7420, 10769), (8162, 9790), (8470, 9434)]