668889416

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{1523}}^1$

素因数の和:1686

約数の個数: 64

約数和(自身を含む): 1397934720

約数和(自身を除く): 729045304

約数列:

[1, 2, 4, 8, 13, 26, 41, 52, 82, 103, 104, 164, 206, 328, 412, 533, 824, 1066, 1339, 1523, 2132, 2678, 3046, 4223, 4264, 5356, 6092, 8446, 10712, 12184, 16892, 19799, 33784, 39598, 54899, 62443, 79196, 109798, 124886, 156869, 158392, 219596, 249772, 313738, 439192, 499544, 627476, 811759, 1254952, 1623518, 2039297, 3247036, 4078594, 6431629, 6494072, 8157188, 12863258, 16314376, 25726516, 51453032, 83611177, 167222354, 334444708, 668889416]

約数ペア:

[(1, 668889416), (2, 334444708), (4, 167222354), (8, 83611177), (13, 51453032), (26, 25726516), (41, 16314376), (52, 12863258), (82, 8157188), (103, 6494072), (104, 6431629), (164, 4078594), (206, 3247036), (328, 2039297), (412, 1623518), (533, 1254952), (824, 811759), (1066, 627476), (1339, 499544), (1523, 439192), (2132, 313738), (2678, 249772), (3046, 219596), (4223, 158392), (4264, 156869), (5356, 124886), (6092, 109798), (8446, 79196), (10712, 62443), (12184, 54899), (16892, 39598), (19799, 33784)]