20153308

素因数分解:

$2^2\times 7^3\times {\mathrm{37}}^1\times {\mathrm{397}}^1$

素因数の和:459

約数の個数: 48

約数和(自身を含む): 42347200

約数和(自身を除く): 22193892

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 74, 98, 148, 196, 259, 343, 397, 518, 686, 794, 1036, 1372, 1588, 1813, 2779, 3626, 5558, 7252, 11116, 12691, 14689, 19453, 25382, 29378, 38906, 50764, 58756, 77812, 102823, 136171, 205646, 272342, 411292, 544684, 719761, 1439522, 2879044, 5038327, 10076654, 20153308]

約数ペア:

[(1, 20153308), (2, 10076654), (4, 5038327), (7, 2879044), (14, 1439522), (28, 719761), (37, 544684), (49, 411292), (74, 272342), (98, 205646), (148, 136171), (196, 102823), (259, 77812), (343, 58756), (397, 50764), (518, 38906), (686, 29378), (794, 25382), (1036, 19453), (1372, 14689), (1588, 12691), (1813, 11116), (2779, 7252), (3626, 5558)]