16401996

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{347}}^1$

素因数の和:471

約数の個数: 72

約数和(自身を含む): 45221904

約数和(自身を除く): 28819908

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 101, 117, 156, 202, 234, 303, 347, 404, 468, 606, 694, 909, 1041, 1212, 1313, 1388, 1818, 2082, 2626, 3123, 3636, 3939, 4164, 4511, 5252, 6246, 7878, 9022, 11817, 12492, 13533, 15756, 18044, 23634, 27066, 35047, 40599, 47268, 54132, 70094, 81198, 105141, 140188, 162396, 210282, 315423, 420564, 455611, 630846, 911222, 1261692, 1366833, 1822444, 2733666, 4100499, 5467332, 8200998, 16401996]

約数ペア:

[(1, 16401996), (2, 8200998), (3, 5467332), (4, 4100499), (6, 2733666), (9, 1822444), (12, 1366833), (13, 1261692), (18, 911222), (26, 630846), (36, 455611), (39, 420564), (52, 315423), (78, 210282), (101, 162396), (117, 140188), (156, 105141), (202, 81198), (234, 70094), (303, 54132), (347, 47268), (404, 40599), (468, 35047), (606, 27066), (694, 23634), (909, 18044), (1041, 15756), (1212, 13533), (1313, 12492), (1388, 11817), (1818, 9022), (2082, 7878), (2626, 6246), (3123, 5252), (3636, 4511), (3939, 4164)]