28156780820

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{67}}^1\times {\mathrm{61261}}^1$

素因数の和:61358

約数の個数: 96

約数和(自身を含む): 69985708800

約数和(自身を除く): 41828927980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 67, 70, 98, 134, 140, 196, 245, 268, 335, 343, 469, 490, 670, 686, 938, 980, 1340, 1372, 1715, 1876, 2345, 3283, 3430, 4690, 6566, 6860, 9380, 13132, 16415, 22981, 32830, 45962, 61261, 65660, 91924, 114905, 122522, 229810, 245044, 306305, 428827, 459620, 612610, 857654, 1225220, 1715308, 2144135, 3001789, 4104487, 4288270, 6003578, 8208974, 8576540, 12007156, 15008945, 16417948, 20522435, 21012523, 28731409, 30017890, 41044870, 42025046, 57462818, 60035780, 82089740, 84050092, 105062615, 114925636, 143657045, 201119863, 210125230, 287314090, 402239726, 420250460, 574628180, 804479452, 1005599315, 1407839041, 2011198630, 2815678082, 4022397260, 5631356164, 7039195205, 14078390410, 28156780820]

約数ペア:

[(1, 28156780820), (2, 14078390410), (4, 7039195205), (5, 5631356164), (7, 4022397260), (10, 2815678082), (14, 2011198630), (20, 1407839041), (28, 1005599315), (35, 804479452), (49, 574628180), (67, 420250460), (70, 402239726), (98, 287314090), (134, 210125230), (140, 201119863), (196, 143657045), (245, 114925636), (268, 105062615), (335, 84050092), (343, 82089740), (469, 60035780), (490, 57462818), (670, 42025046), (686, 41044870), (938, 30017890), (980, 28731409), (1340, 21012523), (1372, 20522435), (1715, 16417948), (1876, 15008945), (2345, 12007156), (3283, 8576540), (3430, 8208974), (4690, 6003578), (6566, 4288270), (6860, 4104487), (9380, 3001789), (13132, 2144135), (16415, 1715308), (22981, 1225220), (32830, 857654), (45962, 612610), (61261, 459620), (65660, 428827), (91924, 306305), (114905, 245044), (122522, 229810)]