254470860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{201961}}^1$

素因数の和:201983

約数の個数: 72

約数和(自身を含む): 882170016

約数和(自身を除く): 627699156

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 201961, 403922, 605883, 807844, 1009805, 1211766, 1413727, 1817649, 2019610, 2423532, 2827454, 3029415, 3635298, 4039220, 4241181, 5654908, 6058830, 7068635, 7270596, 8482362, 9088245, 12117660, 12723543, 14137270, 16964724, 18176490, 21205905, 25447086, 28274540, 36352980, 42411810, 50894172, 63617715, 84823620, 127235430, 254470860]

約数ペア:

[(1, 254470860), (2, 127235430), (3, 84823620), (4, 63617715), (5, 50894172), (6, 42411810), (7, 36352980), (9, 28274540), (10, 25447086), (12, 21205905), (14, 18176490), (15, 16964724), (18, 14137270), (20, 12723543), (21, 12117660), (28, 9088245), (30, 8482362), (35, 7270596), (36, 7068635), (42, 6058830), (45, 5654908), (60, 4241181), (63, 4039220), (70, 3635298), (84, 3029415), (90, 2827454), (105, 2423532), (126, 2019610), (140, 1817649), (180, 1413727), (210, 1211766), (252, 1009805), (315, 807844), (420, 605883), (630, 403922), (1260, 201961)]