1916804980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{1021}}^1$

素因数の和:1169

約数の個数: 96

約数和(自身を含む): 4306135680

約数和(自身を除く): 2389330700

約数列:

[1, 2, 4, 5, 10, 20, 37, 43, 59, 74, 86, 118, 148, 172, 185, 215, 236, 295, 370, 430, 590, 740, 860, 1021, 1180, 1591, 2042, 2183, 2537, 3182, 4084, 4366, 5074, 5105, 6364, 7955, 8732, 10148, 10210, 10915, 12685, 15910, 20420, 21830, 25370, 31820, 37777, 43660, 43903, 50740, 60239, 75554, 87806, 93869, 120478, 151108, 175612, 187738, 188885, 219515, 240956, 301195, 375476, 377770, 439030, 469345, 602390, 755540, 878060, 938690, 1204780, 1624411, 1877380, 2228843, 2590277, 3248822, 4457686, 5180554, 6497644, 8122055, 8915372, 10361108, 11144215, 12951385, 16244110, 22288430, 25902770, 32488220, 44576860, 51805540, 95840249, 191680498, 383360996, 479201245, 958402490, 1916804980]

約数ペア:

[(1, 1916804980), (2, 958402490), (4, 479201245), (5, 383360996), (10, 191680498), (20, 95840249), (37, 51805540), (43, 44576860), (59, 32488220), (74, 25902770), (86, 22288430), (118, 16244110), (148, 12951385), (172, 11144215), (185, 10361108), (215, 8915372), (236, 8122055), (295, 6497644), (370, 5180554), (430, 4457686), (590, 3248822), (740, 2590277), (860, 2228843), (1021, 1877380), (1180, 1624411), (1591, 1204780), (2042, 938690), (2183, 878060), (2537, 755540), (3182, 602390), (4084, 469345), (4366, 439030), (5074, 377770), (5105, 375476), (6364, 301195), (7955, 240956), (8732, 219515), (10148, 188885), (10210, 187738), (10915, 175612), (12685, 151108), (15910, 120478), (20420, 93869), (21830, 87806), (25370, 75554), (31820, 60239), (37777, 50740), (43660, 43903)]