81608520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{13879}}^1$

素因数の和:13907

約数の個数: 96

約数和(自身を含む): 284817600

約数和(自身を除く): 203209080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 392, 420, 490, 588, 735, 840, 980, 1176, 1470, 1960, 2940, 5880, 13879, 27758, 41637, 55516, 69395, 83274, 97153, 111032, 138790, 166548, 194306, 208185, 277580, 291459, 333096, 388612, 416370, 485765, 555160, 582918, 680071, 777224, 832740, 971530, 1165836, 1360142, 1457295, 1665480, 1943060, 2040213, 2331672, 2720284, 2914590, 3400355, 3886120, 4080426, 5440568, 5829180, 6800710, 8160852, 10201065, 11658360, 13601420, 16321704, 20402130, 27202840, 40804260, 81608520]

約数ペア:

[(1, 81608520), (2, 40804260), (3, 27202840), (4, 20402130), (5, 16321704), (6, 13601420), (7, 11658360), (8, 10201065), (10, 8160852), (12, 6800710), (14, 5829180), (15, 5440568), (20, 4080426), (21, 3886120), (24, 3400355), (28, 2914590), (30, 2720284), (35, 2331672), (40, 2040213), (42, 1943060), (49, 1665480), (56, 1457295), (60, 1360142), (70, 1165836), (84, 971530), (98, 832740), (105, 777224), (120, 680071), (140, 582918), (147, 555160), (168, 485765), (196, 416370), (210, 388612), (245, 333096), (280, 291459), (294, 277580), (392, 208185), (420, 194306), (490, 166548), (588, 138790), (735, 111032), (840, 97153), (980, 83274), (1176, 69395), (1470, 55516), (1960, 41637), (2940, 27758), (5880, 13879)]