311203685

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:234

約数の個数: 64

約数和(自身を含む): 442810368

約数和(自身を除く): 131606683

約数列:

[1, 5, 13, 23, 43, 47, 65, 103, 115, 215, 235, 299, 515, 559, 611, 989, 1081, 1339, 1495, 2021, 2369, 2795, 3055, 4429, 4841, 4945, 5405, 6695, 10105, 11845, 12857, 14053, 22145, 24205, 26273, 30797, 46483, 57577, 62933, 64285, 70265, 101867, 111343, 131365, 153985, 208163, 232415, 287885, 314665, 509335, 556715, 604279, 1040815, 1324271, 1447459, 2706119, 3021395, 4787749, 6621355, 7237295, 13530595, 23938745, 62240737, 311203685]

約数ペア:

[(1, 311203685), (5, 62240737), (13, 23938745), (23, 13530595), (43, 7237295), (47, 6621355), (65, 4787749), (103, 3021395), (115, 2706119), (215, 1447459), (235, 1324271), (299, 1040815), (515, 604279), (559, 556715), (611, 509335), (989, 314665), (1081, 287885), (1339, 232415), (1495, 208163), (2021, 153985), (2369, 131365), (2795, 111343), (3055, 101867), (4429, 70265), (4841, 64285), (4945, 62933), (5405, 57577), (6695, 46483), (10105, 30797), (11845, 26273), (12857, 24205), (14053, 22145)]