245140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1$

素因数の和:136

約数の個数: 48

約数和(自身を含む): 628992

約数和(自身を除く): 383852

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 103, 119, 140, 170, 206, 238, 340, 412, 476, 515, 595, 721, 1030, 1190, 1442, 1751, 2060, 2380, 2884, 3502, 3605, 7004, 7210, 8755, 12257, 14420, 17510, 24514, 35020, 49028, 61285, 122570, 245140]

約数ペア:

[(1, 245140), (2, 122570), (4, 61285), (5, 49028), (7, 35020), (10, 24514), (14, 17510), (17, 14420), (20, 12257), (28, 8755), (34, 7210), (35, 7004), (68, 3605), (70, 3502), (85, 2884), (103, 2380), (119, 2060), (140, 1751), (170, 1442), (206, 1190), (238, 1030), (340, 721), (412, 595), (476, 515)]