161205100

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{167}}^1\times {\mathrm{197}}^1$

素因数の和:392

約数の個数: 108

約数和(自身を含む): 411442416

約数和(自身を除く): 250237316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 167, 175, 196, 197, 245, 334, 350, 394, 490, 668, 700, 788, 835, 980, 985, 1169, 1225, 1379, 1670, 1970, 2338, 2450, 2758, 3340, 3940, 4175, 4676, 4900, 4925, 5516, 5845, 6895, 8183, 8350, 9653, 9850, 11690, 13790, 16366, 16700, 19306, 19700, 23380, 27580, 29225, 32732, 32899, 34475, 38612, 40915, 48265, 58450, 65798, 68950, 81830, 96530, 116900, 131596, 137900, 163660, 164495, 193060, 204575, 230293, 241325, 328990, 409150, 460586, 482650, 657980, 818300, 822475, 921172, 965300, 1151465, 1612051, 1644950, 2302930, 3224102, 3289900, 4605860, 5757325, 6448204, 8060255, 11514650, 16120510, 23029300, 32241020, 40301275, 80602550, 161205100]

約数ペア:

[(1, 161205100), (2, 80602550), (4, 40301275), (5, 32241020), (7, 23029300), (10, 16120510), (14, 11514650), (20, 8060255), (25, 6448204), (28, 5757325), (35, 4605860), (49, 3289900), (50, 3224102), (70, 2302930), (98, 1644950), (100, 1612051), (140, 1151465), (167, 965300), (175, 921172), (196, 822475), (197, 818300), (245, 657980), (334, 482650), (350, 460586), (394, 409150), (490, 328990), (668, 241325), (700, 230293), (788, 204575), (835, 193060), (980, 164495), (985, 163660), (1169, 137900), (1225, 131596), (1379, 116900), (1670, 96530), (1970, 81830), (2338, 68950), (2450, 65798), (2758, 58450), (3340, 48265), (3940, 40915), (4175, 38612), (4676, 34475), (4900, 32899), (4925, 32732), (5516, 29225), (5845, 27580), (6895, 23380), (8183, 19700), (8350, 19306), (9653, 16700), (9850, 16366), (11690, 13790)]