28987868

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{821}}^1$

素因数の和:942

約数の個数: 48

約数和(自身を含む): 63155904

約数和(自身を除く): 34168036

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 97, 182, 194, 364, 388, 679, 821, 1261, 1358, 1642, 2522, 2716, 3284, 5044, 5747, 8827, 10673, 11494, 17654, 21346, 22988, 35308, 42692, 74711, 79637, 149422, 159274, 298844, 318548, 557459, 1035281, 1114918, 2070562, 2229836, 4141124, 7246967, 14493934, 28987868]

約数ペア:

[(1, 28987868), (2, 14493934), (4, 7246967), (7, 4141124), (13, 2229836), (14, 2070562), (26, 1114918), (28, 1035281), (52, 557459), (91, 318548), (97, 298844), (182, 159274), (194, 149422), (364, 79637), (388, 74711), (679, 42692), (821, 35308), (1261, 22988), (1358, 21346), (1642, 17654), (2522, 11494), (2716, 10673), (3284, 8827), (5044, 5747)]