64778925

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^2$

素因数の和:147

約数の個数: 72

約数和(自身を含む): 120902976

約数和(自身を除く): 56124051

約数列:

[1, 3, 5, 15, 17, 23, 25, 47, 51, 69, 75, 85, 115, 141, 235, 255, 345, 391, 425, 575, 705, 799, 1081, 1173, 1175, 1275, 1725, 1955, 2209, 2397, 3243, 3525, 3995, 5405, 5865, 6627, 9775, 11045, 11985, 16215, 18377, 19975, 27025, 29325, 33135, 37553, 50807, 55131, 55225, 59925, 81075, 91885, 112659, 152421, 165675, 187765, 254035, 275655, 459425, 563295, 762105, 863719, 938825, 1270175, 1378275, 2591157, 2816475, 3810525, 4318595, 12955785, 21592975, 64778925]

約数ペア:

[(1, 64778925), (3, 21592975), (5, 12955785), (15, 4318595), (17, 3810525), (23, 2816475), (25, 2591157), (47, 1378275), (51, 1270175), (69, 938825), (75, 863719), (85, 762105), (115, 563295), (141, 459425), (235, 275655), (255, 254035), (345, 187765), (391, 165675), (425, 152421), (575, 112659), (705, 91885), (799, 81075), (1081, 59925), (1173, 55225), (1175, 55131), (1275, 50807), (1725, 37553), (1955, 33135), (2209, 29325), (2397, 27025), (3243, 19975), (3525, 18377), (3995, 16215), (5405, 11985), (5865, 11045), (6627, 9775)]