78876380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{2617}}^1$

素因数の和:2774

約数の個数: 48

約数和(自身を含む): 182087136

約数和(自身を除く): 103210756

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 137, 220, 274, 548, 685, 1370, 1507, 2617, 2740, 3014, 5234, 6028, 7535, 10468, 13085, 15070, 26170, 28787, 30140, 52340, 57574, 115148, 143935, 287870, 358529, 575740, 717058, 1434116, 1792645, 3585290, 3943819, 7170580, 7887638, 15775276, 19719095, 39438190, 78876380]

約数ペア:

[(1, 78876380), (2, 39438190), (4, 19719095), (5, 15775276), (10, 7887638), (11, 7170580), (20, 3943819), (22, 3585290), (44, 1792645), (55, 1434116), (110, 717058), (137, 575740), (220, 358529), (274, 287870), (548, 143935), (685, 115148), (1370, 57574), (1507, 52340), (2617, 30140), (2740, 28787), (3014, 26170), (5234, 15070), (6028, 13085), (7535, 10468)]