20008772

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 41489280

約数和(自身を除く): 21480508

約数列:

[1, 2, 4, 7, 14, 28, 53, 97, 106, 139, 194, 212, 278, 371, 388, 556, 679, 742, 973, 1358, 1484, 1946, 2716, 3892, 5141, 7367, 10282, 13483, 14734, 20564, 26966, 29468, 35987, 51569, 53932, 71974, 94381, 103138, 143948, 188762, 206276, 377524, 714599, 1429198, 2858396, 5002193, 10004386, 20008772]

約数ペア:

[(1, 20008772), (2, 10004386), (4, 5002193), (7, 2858396), (14, 1429198), (28, 714599), (53, 377524), (97, 206276), (106, 188762), (139, 143948), (194, 103138), (212, 94381), (278, 71974), (371, 53932), (388, 51569), (556, 35987), (679, 29468), (742, 26966), (973, 20564), (1358, 14734), (1484, 13483), (1946, 10282), (2716, 7367), (3892, 5141)]