221401075

素因数分解:

$5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:364

約数の個数: 48

約数和(自身を含む): 323122176

約数和(自身を除く): 101721101

約数列:

[1, 5, 7, 25, 35, 71, 103, 173, 175, 355, 497, 515, 721, 865, 1211, 1775, 2485, 2575, 3605, 4325, 6055, 7313, 12283, 12425, 17819, 18025, 30275, 36565, 51191, 61415, 85981, 89095, 124733, 182825, 255955, 307075, 429905, 445475, 623665, 1265149, 1279775, 2149525, 3118325, 6325745, 8856043, 31628725, 44280215, 221401075]

約数ペア:

[(1, 221401075), (5, 44280215), (7, 31628725), (25, 8856043), (35, 6325745), (71, 3118325), (103, 2149525), (173, 1279775), (175, 1265149), (355, 623665), (497, 445475), (515, 429905), (721, 307075), (865, 255955), (1211, 182825), (1775, 124733), (2485, 89095), (2575, 85981), (3605, 61415), (4325, 51191), (6055, 36565), (7313, 30275), (12283, 18025), (12425, 17819)]