42458840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{353}}^1$

素因数の和:492

約数の個数: 64

約数和(自身を含む): 99912960

約数和(自身を除く): 57454120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 97, 124, 155, 194, 248, 310, 353, 388, 485, 620, 706, 776, 970, 1240, 1412, 1765, 1940, 2824, 3007, 3530, 3880, 6014, 7060, 10943, 12028, 14120, 15035, 21886, 24056, 30070, 34241, 43772, 54715, 60140, 68482, 87544, 109430, 120280, 136964, 171205, 218860, 273928, 342410, 437720, 684820, 1061471, 1369640, 2122942, 4245884, 5307355, 8491768, 10614710, 21229420, 42458840]

約数ペア:

[(1, 42458840), (2, 21229420), (4, 10614710), (5, 8491768), (8, 5307355), (10, 4245884), (20, 2122942), (31, 1369640), (40, 1061471), (62, 684820), (97, 437720), (124, 342410), (155, 273928), (194, 218860), (248, 171205), (310, 136964), (353, 120280), (388, 109430), (485, 87544), (620, 68482), (706, 60140), (776, 54715), (970, 43772), (1240, 34241), (1412, 30070), (1765, 24056), (1940, 21886), (2824, 15035), (3007, 14120), (3530, 12028), (3880, 10943), (6014, 7060)]