211345275

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{7207}}^1$

素因数の和:7260

約数の個数: 48

約数和(自身を含む): 386118144

約数和(自身を除く): 174772869

約数列:

[1, 3, 5, 15, 17, 23, 25, 51, 69, 75, 85, 115, 255, 345, 391, 425, 575, 1173, 1275, 1725, 1955, 5865, 7207, 9775, 21621, 29325, 36035, 108105, 122519, 165761, 180175, 367557, 497283, 540525, 612595, 828805, 1837785, 2486415, 2817937, 3062975, 4144025, 8453811, 9188925, 12432075, 14089685, 42269055, 70448425, 211345275]

約数ペア:

[(1, 211345275), (3, 70448425), (5, 42269055), (15, 14089685), (17, 12432075), (23, 9188925), (25, 8453811), (51, 4144025), (69, 3062975), (75, 2817937), (85, 2486415), (115, 1837785), (255, 828805), (345, 612595), (391, 540525), (425, 497283), (575, 367557), (1173, 180175), (1275, 165761), (1725, 122519), (1955, 108105), (5865, 36035), (7207, 29325), (9775, 21621)]