261234720

素因数分解:

$2^5\times 3^5\times 5^1\times {\mathrm{6719}}^1$

素因数の和:6749

約数の個数: 144

約数和(自身を含む): 924618240

約数和(自身を除く): 663383520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 96, 108, 120, 135, 144, 160, 162, 180, 216, 240, 243, 270, 288, 324, 360, 405, 432, 480, 486, 540, 648, 720, 810, 864, 972, 1080, 1215, 1296, 1440, 1620, 1944, 2160, 2430, 2592, 3240, 3888, 4320, 4860, 6480, 6719, 7776, 9720, 12960, 13438, 19440, 20157, 26876, 33595, 38880, 40314, 53752, 60471, 67190, 80628, 100785, 107504, 120942, 134380, 161256, 181413, 201570, 215008, 241884, 268760, 302355, 322512, 362826, 403140, 483768, 537520, 544239, 604710, 645024, 725652, 806280, 907065, 967536, 1075040, 1088478, 1209420, 1451304, 1612560, 1632717, 1814130, 1935072, 2176956, 2418840, 2721195, 2902608, 3225120, 3265434, 3628260, 4353912, 4837680, 5442390, 5805216, 6530868, 7256520, 8163585, 8707824, 9675360, 10884780, 13061736, 14513040, 16327170, 17415648, 21769560, 26123472, 29026080, 32654340, 43539120, 52246944, 65308680, 87078240, 130617360, 261234720]

約数ペア:

[(1, 261234720), (2, 130617360), (3, 87078240), (4, 65308680), (5, 52246944), (6, 43539120), (8, 32654340), (9, 29026080), (10, 26123472), (12, 21769560), (15, 17415648), (16, 16327170), (18, 14513040), (20, 13061736), (24, 10884780), (27, 9675360), (30, 8707824), (32, 8163585), (36, 7256520), (40, 6530868), (45, 5805216), (48, 5442390), (54, 4837680), (60, 4353912), (72, 3628260), (80, 3265434), (81, 3225120), (90, 2902608), (96, 2721195), (108, 2418840), (120, 2176956), (135, 1935072), (144, 1814130), (160, 1632717), (162, 1612560), (180, 1451304), (216, 1209420), (240, 1088478), (243, 1075040), (270, 967536), (288, 907065), (324, 806280), (360, 725652), (405, 645024), (432, 604710), (480, 544239), (486, 537520), (540, 483768), (648, 403140), (720, 362826), (810, 322512), (864, 302355), (972, 268760), (1080, 241884), (1215, 215008), (1296, 201570), (1440, 181413), (1620, 161256), (1944, 134380), (2160, 120942), (2430, 107504), (2592, 100785), (3240, 80628), (3888, 67190), (4320, 60471), (4860, 53752), (6480, 40314), (6719, 38880), (7776, 33595), (9720, 26876), (12960, 20157), (13438, 19440)]