1971296080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{19541}}^1$

素因数の和:19664

約数の個数: 80

約数和(自身を含む): 4986962064

約数和(自身を除く): 3015665984

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 97, 104, 130, 194, 208, 260, 388, 485, 520, 776, 970, 1040, 1261, 1552, 1940, 2522, 3880, 5044, 6305, 7760, 10088, 12610, 19541, 20176, 25220, 39082, 50440, 78164, 97705, 100880, 156328, 195410, 254033, 312656, 390820, 508066, 781640, 1016132, 1270165, 1563280, 1895477, 2032264, 2540330, 3790954, 4064528, 5080660, 7581908, 9477385, 10161320, 15163816, 18954770, 20322640, 24641201, 30327632, 37909540, 49282402, 75819080, 98564804, 123206005, 151638160, 197129608, 246412010, 394259216, 492824020, 985648040, 1971296080]

約数ペア:

[(1, 1971296080), (2, 985648040), (4, 492824020), (5, 394259216), (8, 246412010), (10, 197129608), (13, 151638160), (16, 123206005), (20, 98564804), (26, 75819080), (40, 49282402), (52, 37909540), (65, 30327632), (80, 24641201), (97, 20322640), (104, 18954770), (130, 15163816), (194, 10161320), (208, 9477385), (260, 7581908), (388, 5080660), (485, 4064528), (520, 3790954), (776, 2540330), (970, 2032264), (1040, 1895477), (1261, 1563280), (1552, 1270165), (1940, 1016132), (2522, 781640), (3880, 508066), (5044, 390820), (6305, 312656), (7760, 254033), (10088, 195410), (12610, 156328), (19541, 100880), (20176, 97705), (25220, 78164), (39082, 50440)]