28319720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4951}}^1$

素因数の和:4986

約数の個数: 64

約数和(自身を含む): 74874240

約数和(自身を除く): 46554520

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 4951, 5720, 9902, 19804, 24755, 39608, 49510, 54461, 64363, 99020, 108922, 128726, 198040, 217844, 257452, 272305, 321815, 435688, 514904, 544610, 643630, 707993, 1089220, 1287260, 1415986, 2178440, 2574520, 2831972, 3539965, 5663944, 7079930, 14159860, 28319720]

約数ペア:

[(1, 28319720), (2, 14159860), (4, 7079930), (5, 5663944), (8, 3539965), (10, 2831972), (11, 2574520), (13, 2178440), (20, 1415986), (22, 1287260), (26, 1089220), (40, 707993), (44, 643630), (52, 544610), (55, 514904), (65, 435688), (88, 321815), (104, 272305), (110, 257452), (130, 217844), (143, 198040), (220, 128726), (260, 108922), (286, 99020), (440, 64363), (520, 54461), (572, 49510), (715, 39608), (1144, 24755), (1430, 19804), (2860, 9902), (4951, 5720)]