17980425

素因数分解:

$3^2\times 5^2\times {\mathrm{157}}^1\times {\mathrm{509}}^1$

素因数の和:682

約数の個数: 36

約数和(自身を含む): 32473740

約数和(自身を除く): 14493315

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 157, 225, 471, 509, 785, 1413, 1527, 2355, 2545, 3925, 4581, 7065, 7635, 11775, 12725, 22905, 35325, 38175, 79913, 114525, 239739, 399565, 719217, 1198695, 1997825, 3596085, 5993475, 17980425]

約数ペア:

[(1, 17980425), (3, 5993475), (5, 3596085), (9, 1997825), (15, 1198695), (25, 719217), (45, 399565), (75, 239739), (157, 114525), (225, 79913), (471, 38175), (509, 35325), (785, 22905), (1413, 12725), (1527, 11775), (2355, 7635), (2545, 7065), (3925, 4581)]