20188034425

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{743}}^1$

素因数の和:947

約数の個数: 72

約数和(自身を含む): 27856699200

約数和(自身を除く): 7668664775

約数列:

[1, 5, 13, 25, 59, 65, 109, 169, 295, 325, 545, 743, 767, 845, 1417, 1475, 2725, 3715, 3835, 4225, 6431, 7085, 9659, 9971, 18421, 18575, 19175, 32155, 35425, 43837, 48295, 49855, 80987, 83603, 92105, 125567, 160775, 219185, 241475, 249275, 404935, 418015, 460525, 569881, 627835, 1052831, 1086839, 1095925, 2024675, 2090075, 2849405, 3139175, 4778233, 5264155, 5434195, 7408453, 13686803, 14247025, 23891165, 26320775, 27170975, 37042265, 62117029, 68434015, 119455825, 185211325, 310585145, 342170075, 807521377, 1552925725, 4037606885, 20188034425]

約数ペア:

[(1, 20188034425), (5, 4037606885), (13, 1552925725), (25, 807521377), (59, 342170075), (65, 310585145), (109, 185211325), (169, 119455825), (295, 68434015), (325, 62117029), (545, 37042265), (743, 27170975), (767, 26320775), (845, 23891165), (1417, 14247025), (1475, 13686803), (2725, 7408453), (3715, 5434195), (3835, 5264155), (4225, 4778233), (6431, 3139175), (7085, 2849405), (9659, 2090075), (9971, 2024675), (18421, 1095925), (18575, 1086839), (19175, 1052831), (32155, 627835), (35425, 569881), (43837, 460525), (48295, 418015), (49855, 404935), (80987, 249275), (83603, 241475), (92105, 219185), (125567, 160775)]