261519100

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2909}}^1$

素因数の和:2983

約数の個数: 72

約数和(自身を含む): 606211200

約数和(自身を除く): 344692100

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 31, 50, 58, 62, 100, 116, 124, 145, 155, 290, 310, 580, 620, 725, 775, 899, 1450, 1550, 1798, 2900, 2909, 3100, 3596, 4495, 5818, 8990, 11636, 14545, 17980, 22475, 29090, 44950, 58180, 72725, 84361, 89900, 90179, 145450, 168722, 180358, 290900, 337444, 360716, 421805, 450895, 843610, 901790, 1687220, 1803580, 2109025, 2254475, 2615191, 4218050, 4508950, 5230382, 8436100, 9017900, 10460764, 13075955, 26151910, 52303820, 65379775, 130759550, 261519100]

約数ペア:

[(1, 261519100), (2, 130759550), (4, 65379775), (5, 52303820), (10, 26151910), (20, 13075955), (25, 10460764), (29, 9017900), (31, 8436100), (50, 5230382), (58, 4508950), (62, 4218050), (100, 2615191), (116, 2254475), (124, 2109025), (145, 1803580), (155, 1687220), (290, 901790), (310, 843610), (580, 450895), (620, 421805), (725, 360716), (775, 337444), (899, 290900), (1450, 180358), (1550, 168722), (1798, 145450), (2900, 90179), (2909, 89900), (3100, 84361), (3596, 72725), (4495, 58180), (5818, 44950), (8990, 29090), (11636, 22475), (14545, 17980)]