28972476

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1997}}^1$

素因数の和:2051

約数の個数: 72

約数和(自身を含む): 81454464

約数和(自身を除く): 52481988

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 117, 124, 156, 186, 234, 279, 372, 403, 468, 558, 806, 1116, 1209, 1612, 1997, 2418, 3627, 3994, 4836, 5991, 7254, 7988, 11982, 14508, 17973, 23964, 25961, 35946, 51922, 61907, 71892, 77883, 103844, 123814, 155766, 185721, 233649, 247628, 311532, 371442, 467298, 557163, 742884, 804791, 934596, 1114326, 1609582, 2228652, 2414373, 3219164, 4828746, 7243119, 9657492, 14486238, 28972476]

約数ペア:

[(1, 28972476), (2, 14486238), (3, 9657492), (4, 7243119), (6, 4828746), (9, 3219164), (12, 2414373), (13, 2228652), (18, 1609582), (26, 1114326), (31, 934596), (36, 804791), (39, 742884), (52, 557163), (62, 467298), (78, 371442), (93, 311532), (117, 247628), (124, 233649), (156, 185721), (186, 155766), (234, 123814), (279, 103844), (372, 77883), (403, 71892), (468, 61907), (558, 51922), (806, 35946), (1116, 25961), (1209, 23964), (1612, 17973), (1997, 14508), (2418, 11982), (3627, 7988), (3994, 7254), (4836, 5991)]