20752240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{15259}}^1$

素因数の和:15289

約数の個数: 40

約数和(自身を含む): 51090480

約数和(自身を除く): 30338240

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 15259, 30518, 61036, 76295, 122072, 152590, 244144, 259403, 305180, 518806, 610360, 1037612, 1220720, 1297015, 2075224, 2594030, 4150448, 5188060, 10376120, 20752240]

約数ペア:

[(1, 20752240), (2, 10376120), (4, 5188060), (5, 4150448), (8, 2594030), (10, 2075224), (16, 1297015), (17, 1220720), (20, 1037612), (34, 610360), (40, 518806), (68, 305180), (80, 259403), (85, 244144), (136, 152590), (170, 122072), (272, 76295), (340, 61036), (680, 30518), (1360, 15259)]