28001272

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:320

約数の個数: 48

約数和(自身を含む): 57645000

約数和(自身を除く): 29643728

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 139, 149, 169, 278, 298, 338, 556, 596, 676, 1112, 1192, 1352, 1807, 1937, 3614, 3874, 7228, 7748, 14456, 15496, 20711, 23491, 25181, 41422, 46982, 50362, 82844, 93964, 100724, 165688, 187928, 201448, 269243, 538486, 1076972, 2153944, 3500159, 7000318, 14000636, 28001272]

約数ペア:

[(1, 28001272), (2, 14000636), (4, 7000318), (8, 3500159), (13, 2153944), (26, 1076972), (52, 538486), (104, 269243), (139, 201448), (149, 187928), (169, 165688), (278, 100724), (298, 93964), (338, 82844), (556, 50362), (596, 46982), (676, 41422), (1112, 25181), (1192, 23491), (1352, 20711), (1807, 15496), (1937, 14456), (3614, 7748), (3874, 7228)]