28074956

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{349}}^1$

素因数の和:403

約数の個数: 72

約数和(自身を含む): 64562400

約数和(自身を除く): 36487444

約数列:

[1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 52, 68, 91, 119, 169, 182, 221, 238, 338, 349, 364, 442, 476, 676, 698, 884, 1183, 1396, 1547, 2366, 2443, 2873, 3094, 4537, 4732, 4886, 5746, 5933, 6188, 9074, 9772, 11492, 11866, 18148, 20111, 23732, 31759, 40222, 41531, 58981, 63518, 77129, 80444, 83062, 117962, 127036, 154258, 166124, 235924, 308516, 412867, 539903, 825734, 1002677, 1079806, 1651468, 2005354, 2159612, 4010708, 7018739, 14037478, 28074956]

約数ペア:

[(1, 28074956), (2, 14037478), (4, 7018739), (7, 4010708), (13, 2159612), (14, 2005354), (17, 1651468), (26, 1079806), (28, 1002677), (34, 825734), (52, 539903), (68, 412867), (91, 308516), (119, 235924), (169, 166124), (182, 154258), (221, 127036), (238, 117962), (338, 83062), (349, 80444), (364, 77129), (442, 63518), (476, 58981), (676, 41531), (698, 40222), (884, 31759), (1183, 23732), (1396, 20111), (1547, 18148), (2366, 11866), (2443, 11492), (2873, 9772), (3094, 9074), (4537, 6188), (4732, 5933), (4886, 5746)]