65420640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{251}}^1$

素因数の和:453

約数の個数: 144

約数和(自身を含む): 225375696

約数和(自身を除く): 159955056

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 181, 240, 251, 288, 360, 362, 480, 502, 543, 720, 724, 753, 905, 1004, 1086, 1255, 1440, 1448, 1506, 1629, 1810, 2008, 2172, 2259, 2510, 2715, 2896, 3012, 3258, 3620, 3765, 4016, 4344, 4518, 5020, 5430, 5792, 6024, 6516, 7240, 7530, 8032, 8145, 8688, 9036, 10040, 10860, 11295, 12048, 13032, 14480, 15060, 16290, 17376, 18072, 20080, 21720, 22590, 24096, 26064, 28960, 30120, 32580, 36144, 40160, 43440, 45180, 45431, 52128, 60240, 65160, 72288, 86880, 90360, 90862, 120480, 130320, 136293, 180720, 181724, 227155, 260640, 272586, 361440, 363448, 408879, 454310, 545172, 681465, 726896, 817758, 908620, 1090344, 1362930, 1453792, 1635516, 1817240, 2044395, 2180688, 2725860, 3271032, 3634480, 4088790, 4361376, 5451720, 6542064, 7268960, 8177580, 10903440, 13084128, 16355160, 21806880, 32710320, 65420640]

約数ペア:

[(1, 65420640), (2, 32710320), (3, 21806880), (4, 16355160), (5, 13084128), (6, 10903440), (8, 8177580), (9, 7268960), (10, 6542064), (12, 5451720), (15, 4361376), (16, 4088790), (18, 3634480), (20, 3271032), (24, 2725860), (30, 2180688), (32, 2044395), (36, 1817240), (40, 1635516), (45, 1453792), (48, 1362930), (60, 1090344), (72, 908620), (80, 817758), (90, 726896), (96, 681465), (120, 545172), (144, 454310), (160, 408879), (180, 363448), (181, 361440), (240, 272586), (251, 260640), (288, 227155), (360, 181724), (362, 180720), (480, 136293), (502, 130320), (543, 120480), (720, 90862), (724, 90360), (753, 86880), (905, 72288), (1004, 65160), (1086, 60240), (1255, 52128), (1440, 45431), (1448, 45180), (1506, 43440), (1629, 40160), (1810, 36144), (2008, 32580), (2172, 30120), (2259, 28960), (2510, 26064), (2715, 24096), (2896, 22590), (3012, 21720), (3258, 20080), (3620, 18072), (3765, 17376), (4016, 16290), (4344, 15060), (4518, 14480), (5020, 13032), (5430, 12048), (5792, 11295), (6024, 10860), (6516, 10040), (7240, 9036), (7530, 8688), (8032, 8145)]