20861460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5039}}^1$

素因数の和:5077

約数の個数: 72

約数和(自身を含む): 66044160

約数和(自身を除く): 45182700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 5039, 10078, 15117, 20156, 25195, 30234, 45351, 50390, 60468, 75585, 90702, 100780, 115897, 151170, 181404, 226755, 231794, 302340, 347691, 453510, 463588, 579485, 695382, 907020, 1043073, 1158970, 1390764, 1738455, 2086146, 2317940, 3476910, 4172292, 5215365, 6953820, 10430730, 20861460]

約数ペア:

[(1, 20861460), (2, 10430730), (3, 6953820), (4, 5215365), (5, 4172292), (6, 3476910), (9, 2317940), (10, 2086146), (12, 1738455), (15, 1390764), (18, 1158970), (20, 1043073), (23, 907020), (30, 695382), (36, 579485), (45, 463588), (46, 453510), (60, 347691), (69, 302340), (90, 231794), (92, 226755), (115, 181404), (138, 151170), (180, 115897), (207, 100780), (230, 90702), (276, 75585), (345, 60468), (414, 50390), (460, 45351), (690, 30234), (828, 25195), (1035, 20156), (1380, 15117), (2070, 10078), (4140, 5039)]