81618328

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:320

約数の個数: 64

約数和(自身を含む): 172339200

約数和(自身を除く): 90720872

約数列:

[1, 2, 4, 8, 11, 22, 44, 67, 88, 109, 127, 134, 218, 254, 268, 436, 508, 536, 737, 872, 1016, 1199, 1397, 1474, 2398, 2794, 2948, 4796, 5588, 5896, 7303, 8509, 9592, 11176, 13843, 14606, 17018, 27686, 29212, 34036, 55372, 58424, 68072, 80333, 93599, 110744, 152273, 160666, 187198, 304546, 321332, 374396, 609092, 642664, 748792, 927481, 1218184, 1854962, 3709924, 7419848, 10202291, 20404582, 40809164, 81618328]

約数ペア:

[(1, 81618328), (2, 40809164), (4, 20404582), (8, 10202291), (11, 7419848), (22, 3709924), (44, 1854962), (67, 1218184), (88, 927481), (109, 748792), (127, 642664), (134, 609092), (218, 374396), (254, 321332), (268, 304546), (436, 187198), (508, 160666), (536, 152273), (737, 110744), (872, 93599), (1016, 80333), (1199, 68072), (1397, 58424), (1474, 55372), (2398, 34036), (2794, 29212), (2948, 27686), (4796, 17018), (5588, 14606), (5896, 13843), (7303, 11176), (8509, 9592)]