2019778460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1\times {\mathrm{937}}^1$

素因数の和:1215

約数の個数: 96

約数和(自身を含む): 4935530880

約数和(自身を除く): 2915752420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 173, 178, 346, 356, 445, 623, 692, 865, 890, 937, 1211, 1246, 1730, 1780, 1874, 2422, 2492, 3115, 3460, 3748, 4685, 4844, 6055, 6230, 6559, 9370, 12110, 12460, 13118, 15397, 18740, 24220, 26236, 30794, 32795, 61588, 65590, 76985, 83393, 107779, 131180, 153970, 162101, 166786, 215558, 307940, 324202, 333572, 416965, 431116, 538895, 583751, 648404, 810505, 833930, 1077790, 1134707, 1167502, 1621010, 1667860, 2155580, 2269414, 2335004, 2918755, 3242020, 4538828, 5673535, 5837510, 11347070, 11675020, 14426989, 22694140, 28853978, 57707956, 72134945, 100988923, 144269890, 201977846, 288539780, 403955692, 504944615, 1009889230, 2019778460]

約数ペア:

[(1, 2019778460), (2, 1009889230), (4, 504944615), (5, 403955692), (7, 288539780), (10, 201977846), (14, 144269890), (20, 100988923), (28, 72134945), (35, 57707956), (70, 28853978), (89, 22694140), (140, 14426989), (173, 11675020), (178, 11347070), (346, 5837510), (356, 5673535), (445, 4538828), (623, 3242020), (692, 2918755), (865, 2335004), (890, 2269414), (937, 2155580), (1211, 1667860), (1246, 1621010), (1730, 1167502), (1780, 1134707), (1874, 1077790), (2422, 833930), (2492, 810505), (3115, 648404), (3460, 583751), (3748, 538895), (4685, 431116), (4844, 416965), (6055, 333572), (6230, 324202), (6559, 307940), (9370, 215558), (12110, 166786), (12460, 162101), (13118, 153970), (15397, 131180), (18740, 107779), (24220, 83393), (26236, 76985), (30794, 65590), (32795, 61588)]