16665228

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:287

約数の個数: 72

約数和(自身を含む): 44204160

約数和(自身を除く): 27538932

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 109, 124, 137, 186, 218, 274, 279, 327, 372, 411, 436, 548, 558, 654, 822, 981, 1116, 1233, 1308, 1644, 1962, 2466, 3379, 3924, 4247, 4932, 6758, 8494, 10137, 12741, 13516, 14933, 16988, 20274, 25482, 29866, 30411, 38223, 40548, 44799, 50964, 59732, 60822, 76446, 89598, 121644, 134397, 152892, 179196, 268794, 462923, 537588, 925846, 1388769, 1851692, 2777538, 4166307, 5555076, 8332614, 16665228]

約数ペア:

[(1, 16665228), (2, 8332614), (3, 5555076), (4, 4166307), (6, 2777538), (9, 1851692), (12, 1388769), (18, 925846), (31, 537588), (36, 462923), (62, 268794), (93, 179196), (109, 152892), (124, 134397), (137, 121644), (186, 89598), (218, 76446), (274, 60822), (279, 59732), (327, 50964), (372, 44799), (411, 40548), (436, 38223), (548, 30411), (558, 29866), (654, 25482), (822, 20274), (981, 16988), (1116, 14933), (1233, 13516), (1308, 12741), (1644, 10137), (1962, 8494), (2466, 6758), (3379, 4932), (3924, 4247)]