1400140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:226

約数の個数: 48

約数和(自身を含む): 3431232

約数和(自身を除く): 2031092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 137, 140, 146, 274, 292, 365, 511, 548, 685, 730, 959, 1022, 1370, 1460, 1918, 2044, 2555, 2740, 3836, 4795, 5110, 9590, 10001, 10220, 19180, 20002, 40004, 50005, 70007, 100010, 140014, 200020, 280028, 350035, 700070, 1400140]

約数ペア:

[(1, 1400140), (2, 700070), (4, 350035), (5, 280028), (7, 200020), (10, 140014), (14, 100010), (20, 70007), (28, 50005), (35, 40004), (70, 20002), (73, 19180), (137, 10220), (140, 10001), (146, 9590), (274, 5110), (292, 4795), (365, 3836), (511, 2740), (548, 2555), (685, 2044), (730, 1918), (959, 1460), (1022, 1370)]