155969975

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 232336320

約数和(自身を除く): 76366345

約数列:

[1, 5, 7, 25, 29, 35, 73, 145, 175, 203, 365, 421, 511, 725, 1015, 1825, 2105, 2117, 2555, 2947, 5075, 10525, 10585, 12209, 12775, 14735, 14819, 30733, 52925, 61045, 73675, 74095, 85463, 153665, 215131, 305225, 370475, 427315, 768325, 891257, 1075655, 2136575, 4456285, 5378275, 6238799, 22281425, 31193995, 155969975]

約数ペア:

[(1, 155969975), (5, 31193995), (7, 22281425), (25, 6238799), (29, 5378275), (35, 4456285), (73, 2136575), (145, 1075655), (175, 891257), (203, 768325), (365, 427315), (421, 370475), (511, 305225), (725, 215131), (1015, 153665), (1825, 85463), (2105, 74095), (2117, 73675), (2555, 61045), (2947, 52925), (5075, 30733), (10525, 14819), (10585, 14735), (12209, 12775)]