20189901620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{659}}^1\times {\mathrm{4129}}^1$

素因数の和:4857

約数の個数: 96

約数和(自身を含む): 49456915200

約数和(自身を除く): 29267013580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 659, 742, 1060, 1318, 1484, 1855, 2636, 3295, 3710, 4129, 4613, 6590, 7420, 8258, 9226, 13180, 16516, 18452, 20645, 23065, 28903, 34927, 41290, 46130, 57806, 69854, 82580, 92260, 115612, 139708, 144515, 174635, 218837, 244489, 289030, 349270, 437674, 488978, 578060, 698540, 875348, 977956, 1094185, 1222445, 1531859, 2188370, 2444890, 2721011, 3063718, 4376740, 4889780, 5442022, 6127436, 7659295, 10884044, 13605055, 15318590, 19047077, 27210110, 30637180, 38094154, 54420220, 76188308, 95235385, 144213583, 190470770, 288427166, 380941540, 576854332, 721067915, 1009495081, 1442135830, 2018990162, 2884271660, 4037980324, 5047475405, 10094950810, 20189901620]

約数ペア:

[(1, 20189901620), (2, 10094950810), (4, 5047475405), (5, 4037980324), (7, 2884271660), (10, 2018990162), (14, 1442135830), (20, 1009495081), (28, 721067915), (35, 576854332), (53, 380941540), (70, 288427166), (106, 190470770), (140, 144213583), (212, 95235385), (265, 76188308), (371, 54420220), (530, 38094154), (659, 30637180), (742, 27210110), (1060, 19047077), (1318, 15318590), (1484, 13605055), (1855, 10884044), (2636, 7659295), (3295, 6127436), (3710, 5442022), (4129, 4889780), (4613, 4376740), (6590, 3063718), (7420, 2721011), (8258, 2444890), (9226, 2188370), (13180, 1531859), (16516, 1222445), (18452, 1094185), (20645, 977956), (23065, 875348), (28903, 698540), (34927, 578060), (41290, 488978), (46130, 437674), (57806, 349270), (69854, 289030), (82580, 244489), (92260, 218837), (115612, 174635), (139708, 144515)]