28723020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{2003}}^1$

素因数の和:2254

約数の個数: 48

約数和(自身を含む): 80801280

約数和(自身を除く): 52078260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 239, 478, 717, 956, 1195, 1434, 2003, 2390, 2868, 3585, 4006, 4780, 6009, 7170, 8012, 10015, 12018, 14340, 20030, 24036, 30045, 40060, 60090, 120180, 478717, 957434, 1436151, 1914868, 2393585, 2872302, 4787170, 5744604, 7180755, 9574340, 14361510, 28723020]

約数ペア:

[(1, 28723020), (2, 14361510), (3, 9574340), (4, 7180755), (5, 5744604), (6, 4787170), (10, 2872302), (12, 2393585), (15, 1914868), (20, 1436151), (30, 957434), (60, 478717), (239, 120180), (478, 60090), (717, 40060), (956, 30045), (1195, 24036), (1434, 20030), (2003, 14340), (2390, 12018), (2868, 10015), (3585, 8012), (4006, 7170), (4780, 6009)]