77912940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{26501}}^1$

素因数の和:26527

約数の個数: 72

約数和(自身を含む): 253783152

約数和(自身を除く): 175870212

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 26501, 53002, 79503, 106004, 132505, 159006, 185507, 265010, 318012, 371014, 397515, 530020, 556521, 742028, 795030, 927535, 1113042, 1298549, 1590060, 1855070, 2226084, 2597098, 2782605, 3710140, 3895647, 5194196, 5565210, 6492745, 7791294, 11130420, 12985490, 15582588, 19478235, 25970980, 38956470, 77912940]

約数ペア:

[(1, 77912940), (2, 38956470), (3, 25970980), (4, 19478235), (5, 15582588), (6, 12985490), (7, 11130420), (10, 7791294), (12, 6492745), (14, 5565210), (15, 5194196), (20, 3895647), (21, 3710140), (28, 2782605), (30, 2597098), (35, 2226084), (42, 1855070), (49, 1590060), (60, 1298549), (70, 1113042), (84, 927535), (98, 795030), (105, 742028), (140, 556521), (147, 530020), (196, 397515), (210, 371014), (245, 318012), (294, 265010), (420, 185507), (490, 159006), (588, 132505), (735, 106004), (980, 79503), (1470, 53002), (2940, 26501)]