19945296

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:489

約数の個数: 120

約数和(自身を含む): 65305344

約数和(自身を除く): 45360048

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 47, 48, 56, 63, 72, 84, 94, 112, 126, 141, 144, 168, 188, 252, 282, 329, 336, 376, 421, 423, 504, 564, 658, 752, 842, 846, 987, 1008, 1128, 1263, 1316, 1684, 1692, 1974, 2256, 2526, 2632, 2947, 2961, 3368, 3384, 3789, 3948, 5052, 5264, 5894, 5922, 6736, 6768, 7578, 7896, 8841, 10104, 11788, 11844, 15156, 15792, 17682, 19787, 20208, 23576, 23688, 26523, 30312, 35364, 39574, 47152, 47376, 53046, 59361, 60624, 70728, 79148, 106092, 118722, 138509, 141456, 158296, 178083, 212184, 237444, 277018, 316592, 356166, 415527, 424368, 474888, 554036, 712332, 831054, 949776, 1108072, 1246581, 1424664, 1662108, 2216144, 2493162, 2849328, 3324216, 4986324, 6648432, 9972648, 19945296]

約数ペア:

[(1, 19945296), (2, 9972648), (3, 6648432), (4, 4986324), (6, 3324216), (7, 2849328), (8, 2493162), (9, 2216144), (12, 1662108), (14, 1424664), (16, 1246581), (18, 1108072), (21, 949776), (24, 831054), (28, 712332), (36, 554036), (42, 474888), (47, 424368), (48, 415527), (56, 356166), (63, 316592), (72, 277018), (84, 237444), (94, 212184), (112, 178083), (126, 158296), (141, 141456), (144, 138509), (168, 118722), (188, 106092), (252, 79148), (282, 70728), (329, 60624), (336, 59361), (376, 53046), (421, 47376), (423, 47152), (504, 39574), (564, 35364), (658, 30312), (752, 26523), (842, 23688), (846, 23576), (987, 20208), (1008, 19787), (1128, 17682), (1263, 15792), (1316, 15156), (1684, 11844), (1692, 11788), (1974, 10104), (2256, 8841), (2526, 7896), (2632, 7578), (2947, 6768), (2961, 6736), (3368, 5922), (3384, 5894), (3789, 5264), (3948, 5052)]