31515705

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3169}}^1$

素因数の和:3210

約数の個数: 48

約数和(自身を含む): 62309520

約数和(自身を除く): 30793815

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 195, 221, 255, 585, 663, 765, 1105, 1989, 3169, 3315, 9507, 9945, 15845, 28521, 41197, 47535, 53873, 123591, 142605, 161619, 205985, 269365, 370773, 484857, 617955, 700349, 808095, 1853865, 2101047, 2424285, 3501745, 6303141, 10505235, 31515705]

約数ペア:

[(1, 31515705), (3, 10505235), (5, 6303141), (9, 3501745), (13, 2424285), (15, 2101047), (17, 1853865), (39, 808095), (45, 700349), (51, 617955), (65, 484857), (85, 370773), (117, 269365), (153, 205985), (195, 161619), (221, 142605), (255, 123591), (585, 53873), (663, 47535), (765, 41197), (1105, 28521), (1989, 15845), (3169, 9945), (3315, 9507)]