140556915

素因数分解:

$3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{20963}}^1$

素因数の和:21123

約数の個数: 24

約数和(自身を含む): 245278800

約数和(自身を除く): 104721885

約数列:

[1, 3, 5, 9, 15, 45, 149, 447, 745, 1341, 2235, 6705, 20963, 62889, 104815, 188667, 314445, 943335, 3123487, 9370461, 15617435, 28111383, 46852305, 140556915]

約数ペア:

[(1, 140556915), (3, 46852305), (5, 28111383), (9, 15617435), (15, 9370461), (45, 3123487), (149, 943335), (447, 314445), (745, 188667), (1341, 104815), (2235, 62889), (6705, 20963)]