20304084

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:197

約数の個数: 72

約数和(自身を含む): 51633120

約数和(自身を除く): 31329036

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 43, 57, 76, 86, 109, 114, 129, 172, 218, 228, 258, 327, 361, 436, 516, 654, 722, 817, 1083, 1308, 1444, 1634, 2071, 2166, 2451, 3268, 4142, 4332, 4687, 4902, 6213, 8284, 9374, 9804, 12426, 14061, 15523, 18748, 24852, 28122, 31046, 39349, 46569, 56244, 62092, 78698, 89053, 93138, 118047, 157396, 178106, 186276, 236094, 267159, 356212, 472188, 534318, 1068636, 1692007, 3384014, 5076021, 6768028, 10152042, 20304084]

約数ペア:

[(1, 20304084), (2, 10152042), (3, 6768028), (4, 5076021), (6, 3384014), (12, 1692007), (19, 1068636), (38, 534318), (43, 472188), (57, 356212), (76, 267159), (86, 236094), (109, 186276), (114, 178106), (129, 157396), (172, 118047), (218, 93138), (228, 89053), (258, 78698), (327, 62092), (361, 56244), (436, 46569), (516, 39349), (654, 31046), (722, 28122), (817, 24852), (1083, 18748), (1308, 15523), (1444, 14061), (1634, 12426), (2071, 9804), (2166, 9374), (2451, 8284), (3268, 6213), (4142, 4902), (4332, 4687)]