28581228

素因数分解:

$2^2\times 3^3\times {\mathrm{13}}^1\times {\mathrm{20357}}^1$

素因数の和:20383

約数の個数: 48

約数和(自身を含む): 79803360

約数和(自身を除く): 51222132

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 27, 36, 39, 52, 54, 78, 108, 117, 156, 234, 351, 468, 702, 1404, 20357, 40714, 61071, 81428, 122142, 183213, 244284, 264641, 366426, 529282, 549639, 732852, 793923, 1058564, 1099278, 1587846, 2198556, 2381769, 3175692, 4763538, 7145307, 9527076, 14290614, 28581228]

約数ペア:

[(1, 28581228), (2, 14290614), (3, 9527076), (4, 7145307), (6, 4763538), (9, 3175692), (12, 2381769), (13, 2198556), (18, 1587846), (26, 1099278), (27, 1058564), (36, 793923), (39, 732852), (52, 549639), (54, 529282), (78, 366426), (108, 264641), (117, 244284), (156, 183213), (234, 122142), (351, 81428), (468, 61071), (702, 40714), (1404, 20357)]