28260828

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{523}}^1$

素因数の和:631

約数の個数: 72

約数和(自身を含む): 76294400

約数和(自身を除く): 48033572

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 79, 114, 158, 171, 228, 237, 316, 342, 474, 523, 684, 711, 948, 1046, 1422, 1501, 1569, 2092, 2844, 3002, 3138, 4503, 4707, 6004, 6276, 9006, 9414, 9937, 13509, 18012, 18828, 19874, 27018, 29811, 39748, 41317, 54036, 59622, 82634, 89433, 119244, 123951, 165268, 178866, 247902, 357732, 371853, 495804, 743706, 785023, 1487412, 1570046, 2355069, 3140092, 4710138, 7065207, 9420276, 14130414, 28260828]

約数ペア:

[(1, 28260828), (2, 14130414), (3, 9420276), (4, 7065207), (6, 4710138), (9, 3140092), (12, 2355069), (18, 1570046), (19, 1487412), (36, 785023), (38, 743706), (57, 495804), (76, 371853), (79, 357732), (114, 247902), (158, 178866), (171, 165268), (228, 123951), (237, 119244), (316, 89433), (342, 82634), (474, 59622), (523, 54036), (684, 41317), (711, 39748), (948, 29811), (1046, 27018), (1422, 19874), (1501, 18828), (1569, 18012), (2092, 13509), (2844, 9937), (3002, 9414), (3138, 9006), (4503, 6276), (4707, 6004)]