20394844.000000000

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{55609}}^1$

素因数の和:55654

約数の個数: 64

約数和(自身を含む): 640627200

約数和(自身を除く): 433761720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1240, 1860, 3720, 55609, 111218, 166827, 222436, 278045, 333654, 444872, 556090, 667308, 834135, 1112180, 1334616, 1668270, 1723879, 2224360, 3336540, 3447758, 5171637, 6673080, 6895516, 8619395, 10343274, 13791032, 17238790, 20686548, 25858185, 34477580, 41373096, 51716370, 68955160, 103432740, 206865480]

約数ペア:

[(1, 206865480), (2, 103432740), (3, 68955160), (4, 51716370), (5, 41373096), (6, 34477580), (8, 25858185), (10, 20686548), (12, 17238790), (15, 13791032), (20, 10343274), (24, 8619395), (30, 6895516), (31, 6673080), (40, 5171637), (60, 3447758), (62, 3336540), (93, 2224360), (120, 1723879), (124, 1668270), (155, 1334616), (186, 1112180), (248, 834135), (310, 667308), (372, 556090), (465, 444872), (620, 333654), (744, 278045), (930, 222436), (1240, 166827), (1860, 111218), (3720, 55609)]