1986543180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{42943}}^1$

素因数の和:43215

約数の個数: 72

約数和(自身を含む): 6049435392

約数和(自身を除く): 4062892212

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 257, 514, 771, 1028, 1285, 1542, 2313, 2570, 3084, 3855, 4626, 5140, 7710, 9252, 11565, 15420, 23130, 42943, 46260, 85886, 128829, 171772, 214715, 257658, 386487, 429430, 515316, 644145, 772974, 858860, 1288290, 1545948, 1932435, 2576580, 3864870, 7729740, 11036351, 22072702, 33109053, 44145404, 55181755, 66218106, 99327159, 110363510, 132436212, 165545265, 198654318, 220727020, 331090530, 397308636, 496635795, 662181060, 993271590, 1986543180]

約数ペア:

[(1, 1986543180), (2, 993271590), (3, 662181060), (4, 496635795), (5, 397308636), (6, 331090530), (9, 220727020), (10, 198654318), (12, 165545265), (15, 132436212), (18, 110363510), (20, 99327159), (30, 66218106), (36, 55181755), (45, 44145404), (60, 33109053), (90, 22072702), (180, 11036351), (257, 7729740), (514, 3864870), (771, 2576580), (1028, 1932435), (1285, 1545948), (1542, 1288290), (2313, 858860), (2570, 772974), (3084, 644145), (3855, 515316), (4626, 429430), (5140, 386487), (7710, 257658), (9252, 214715), (11565, 171772), (15420, 128829), (23130, 85886), (42943, 46260)]