20091991680

素因数分解:

$2^7\times 3^4\times 5^1\times {\mathrm{387577}}^1$

素因数の和:387608

約数の個数: 160

約数和(自身を含む): 71752315140

約数和(自身を除く): 51660323460

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, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 270, 288, 320, 324, 360, 384, 405, 432, 480, 540, 576, 640, 648, 720, 810, 864, 960, 1080, 1152, 1296, 1440, 1620, 1728, 1920, 2160, 2592, 2880, 3240, 3456, 4320, 5184, 5760, 6480, 8640, 10368, 12960, 17280, 25920, 51840, 387577, 775154, 1162731, 1550308, 1937885, 2325462, 3100616, 3488193, 3875770, 4650924, 5813655, 6201232, 6976386, 7751540, 9301848, 10464579, 11627310, 12402464, 13952772, 15503080, 17440965, 18603696, 20929158, 23254620, 24804928, 27905544, 31006160, 31393737, 34881930, 37207392, 41858316, 46509240, 49609856, 52322895, 55811088, 62012320, 62787474, 69763860, 74414784, 83716632, 93018480, 104645790, 111622176, 124024640, 125574948, 139527720, 148829568, 156968685, 167433264, 186036960, 209291580, 223244352, 248049280, 251149896, 279055440, 313937370, 334866528, 372073920, 418583160, 446488704, 502299792, 558110880, 627874740, 669733056, 744147840, 837166320, 1004599584, 1116221760, 1255749480, 1339466112, 1674332640, 2009199168, 2232443520, 2511498960, 3348665280, 4018398336, 5022997920, 6697330560, 10045995840, 20091991680]

約数ペア:

[(1, 20091991680), (2, 10045995840), (3, 6697330560), (4, 5022997920), (5, 4018398336), (6, 3348665280), (8, 2511498960), (9, 2232443520), (10, 2009199168), (12, 1674332640), (15, 1339466112), (16, 1255749480), (18, 1116221760), (20, 1004599584), (24, 837166320), (27, 744147840), (30, 669733056), (32, 627874740), (36, 558110880), (40, 502299792), (45, 446488704), (48, 418583160), (54, 372073920), (60, 334866528), (64, 313937370), (72, 279055440), (80, 251149896), (81, 248049280), (90, 223244352), (96, 209291580), (108, 186036960), (120, 167433264), (128, 156968685), (135, 148829568), (144, 139527720), (160, 125574948), (162, 124024640), (180, 111622176), (192, 104645790), (216, 93018480), (240, 83716632), (270, 74414784), (288, 69763860), (320, 62787474), (324, 62012320), (360, 55811088), (384, 52322895), (405, 49609856), (432, 46509240), (480, 41858316), (540, 37207392), (576, 34881930), (640, 31393737), (648, 31006160), (720, 27905544), (810, 24804928), (864, 23254620), (960, 20929158), (1080, 18603696), (1152, 17440965), (1296, 15503080), (1440, 13952772), (1620, 12402464), (1728, 11627310), (1920, 10464579), (2160, 9301848), (2592, 7751540), (2880, 6976386), (3240, 6201232), (3456, 5813655), (4320, 4650924), (5184, 3875770), (5760, 3488193), (6480, 3100616), (8640, 2325462), (10368, 1937885), (12960, 1550308), (17280, 1162731), (25920, 775154), (51840, 387577)]