28184728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{347}}^1$

素因数の和:448

約数の個数: 64

約数和(自身を含む): 63141120

約数和(自身を除く): 34956392

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 71, 88, 104, 142, 143, 284, 286, 347, 568, 572, 694, 781, 923, 1144, 1388, 1562, 1846, 2776, 3124, 3692, 3817, 4511, 6248, 7384, 7634, 9022, 10153, 15268, 18044, 20306, 24637, 30536, 36088, 40612, 49274, 49621, 81224, 98548, 99242, 197096, 198484, 271007, 320281, 396968, 542014, 640562, 1084028, 1281124, 2168056, 2562248, 3523091, 7046182, 14092364, 28184728]

約数ペア:

[(1, 28184728), (2, 14092364), (4, 7046182), (8, 3523091), (11, 2562248), (13, 2168056), (22, 1281124), (26, 1084028), (44, 640562), (52, 542014), (71, 396968), (88, 320281), (104, 271007), (142, 198484), (143, 197096), (284, 99242), (286, 98548), (347, 81224), (568, 49621), (572, 49274), (694, 40612), (781, 36088), (923, 30536), (1144, 24637), (1388, 20306), (1562, 18044), (1846, 15268), (2776, 10153), (3124, 9022), (3692, 7634), (3817, 7384), (4511, 6248)]