253485215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1\times {\mathrm{311}}^1$

素因数の和:599

約数の個数: 32

約数和(自身を含む): 332107776

約数和(自身を除く): 78622561

約数列:

[1, 5, 17, 43, 85, 215, 223, 311, 731, 1115, 1555, 3655, 3791, 5287, 9589, 13373, 18955, 26435, 47945, 66865, 69353, 163013, 227341, 346765, 815065, 1136705, 1179001, 2982179, 5895005, 14910895, 50697043, 253485215]

約数ペア:

[(1, 253485215), (5, 50697043), (17, 14910895), (43, 5895005), (85, 2982179), (215, 1179001), (223, 1136705), (311, 815065), (731, 346765), (1115, 227341), (1555, 163013), (3655, 69353), (3791, 66865), (5287, 47945), (9589, 26435), (13373, 18955)]