205928684

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 420241248

約数和(自身を除く): 214312564

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 71, 142, 193, 221, 284, 289, 386, 442, 578, 772, 884, 923, 1156, 1207, 1846, 2414, 2509, 3281, 3692, 3757, 4828, 5018, 6562, 7514, 10036, 13124, 13703, 15028, 15691, 20519, 27406, 31382, 41038, 42653, 54812, 55777, 62764, 82076, 85306, 111554, 170612, 178139, 223108, 232951, 266747, 356278, 465902, 533494, 712556, 725101, 931804, 1066988, 1450202, 2900404, 3028363, 3960167, 6056726, 7920334, 12113452, 15840668, 51482171, 102964342, 205928684]

約数ペア:

[(1, 205928684), (2, 102964342), (4, 51482171), (13, 15840668), (17, 12113452), (26, 7920334), (34, 6056726), (52, 3960167), (68, 3028363), (71, 2900404), (142, 1450202), (193, 1066988), (221, 931804), (284, 725101), (289, 712556), (386, 533494), (442, 465902), (578, 356278), (772, 266747), (884, 232951), (923, 223108), (1156, 178139), (1207, 170612), (1846, 111554), (2414, 85306), (2509, 82076), (3281, 62764), (3692, 55777), (3757, 54812), (4828, 42653), (5018, 41038), (6562, 31382), (7514, 27406), (10036, 20519), (13124, 15691), (13703, 15028)]