64490925

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 111600000

約数和(自身を除く): 47109075

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 145, 149, 199, 435, 447, 597, 725, 745, 995, 2175, 2235, 2985, 3725, 4321, 4975, 5771, 11175, 12963, 14925, 17313, 21605, 28855, 29651, 64815, 86565, 88953, 108025, 144275, 148255, 324075, 432825, 444765, 741275, 859879, 2223825, 2579637, 4299395, 12898185, 21496975, 64490925]

約数ペア:

[(1, 64490925), (3, 21496975), (5, 12898185), (15, 4299395), (25, 2579637), (29, 2223825), (75, 859879), (87, 741275), (145, 444765), (149, 432825), (199, 324075), (435, 148255), (447, 144275), (597, 108025), (725, 88953), (745, 86565), (995, 64815), (2175, 29651), (2235, 28855), (2985, 21605), (3725, 17313), (4321, 14925), (4975, 12963), (5771, 11175)]