20149956

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:449

約数の個数: 72

約数和(自身を含む): 54381600

約数和(自身を除く): 34231644

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 89, 114, 171, 178, 228, 267, 331, 342, 356, 534, 662, 684, 801, 993, 1068, 1324, 1602, 1691, 1986, 2979, 3204, 3382, 3972, 5073, 5958, 6289, 6764, 10146, 11916, 12578, 15219, 18867, 20292, 25156, 29459, 30438, 37734, 56601, 58918, 60876, 75468, 88377, 113202, 117836, 176754, 226404, 265131, 353508, 530262, 559721, 1060524, 1119442, 1679163, 2238884, 3358326, 5037489, 6716652, 10074978, 20149956]

約数ペア:

[(1, 20149956), (2, 10074978), (3, 6716652), (4, 5037489), (6, 3358326), (9, 2238884), (12, 1679163), (18, 1119442), (19, 1060524), (36, 559721), (38, 530262), (57, 353508), (76, 265131), (89, 226404), (114, 176754), (171, 117836), (178, 113202), (228, 88377), (267, 75468), (331, 60876), (342, 58918), (356, 56601), (534, 37734), (662, 30438), (684, 29459), (801, 25156), (993, 20292), (1068, 18867), (1324, 15219), (1602, 12578), (1691, 11916), (1986, 10146), (2979, 6764), (3204, 6289), (3382, 5958), (3972, 5073)]