72216255

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{173}}^1\times {\mathrm{1637}}^1$

素因数の和:1835

約数の個数: 32

約数和(自身を含む): 123125184

約数和(自身を除く): 50908929

約数列:

[1, 3, 5, 15, 17, 51, 85, 173, 255, 519, 865, 1637, 2595, 2941, 4911, 8185, 8823, 14705, 24555, 27829, 44115, 83487, 139145, 283201, 417435, 849603, 1416005, 4248015, 4814417, 14443251, 24072085, 72216255]

約数ペア:

[(1, 72216255), (3, 24072085), (5, 14443251), (15, 4814417), (17, 4248015), (51, 1416005), (85, 849603), (173, 417435), (255, 283201), (519, 139145), (865, 83487), (1637, 44115), (2595, 27829), (2941, 24555), (4911, 14705), (8185, 8823)]