197005000

素因数分解:

$2^3\times 5^4\times {\mathrm{31}}^2\times {\mathrm{41}}^1$

素因数の和:129

約数の個数: 120

約数和(自身を含む): 488585790

約数和(自身を除く): 291580790

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 41, 50, 62, 82, 100, 124, 125, 155, 164, 200, 205, 248, 250, 310, 328, 410, 500, 620, 625, 775, 820, 961, 1000, 1025, 1240, 1250, 1271, 1550, 1640, 1922, 2050, 2500, 2542, 3100, 3844, 3875, 4100, 4805, 5000, 5084, 5125, 6200, 6355, 7688, 7750, 8200, 9610, 10168, 10250, 12710, 15500, 19220, 19375, 20500, 24025, 25420, 25625, 31000, 31775, 38440, 38750, 39401, 41000, 48050, 50840, 51250, 63550, 77500, 78802, 96100, 102500, 120125, 127100, 155000, 157604, 158875, 192200, 197005, 205000, 240250, 254200, 315208, 317750, 394010, 480500, 600625, 635500, 788020, 794375, 961000, 985025, 1201250, 1271000, 1576040, 1588750, 1970050, 2402500, 3177500, 3940100, 4805000, 4925125, 6355000, 7880200, 9850250, 19700500, 24625625, 39401000, 49251250, 98502500, 197005000]

約数ペア:

[(1, 197005000), (2, 98502500), (4, 49251250), (5, 39401000), (8, 24625625), (10, 19700500), (20, 9850250), (25, 7880200), (31, 6355000), (40, 4925125), (41, 4805000), (50, 3940100), (62, 3177500), (82, 2402500), (100, 1970050), (124, 1588750), (125, 1576040), (155, 1271000), (164, 1201250), (200, 985025), (205, 961000), (248, 794375), (250, 788020), (310, 635500), (328, 600625), (410, 480500), (500, 394010), (620, 317750), (625, 315208), (775, 254200), (820, 240250), (961, 205000), (1000, 197005), (1025, 192200), (1240, 158875), (1250, 157604), (1271, 155000), (1550, 127100), (1640, 120125), (1922, 102500), (2050, 96100), (2500, 78802), (2542, 77500), (3100, 63550), (3844, 51250), (3875, 50840), (4100, 48050), (4805, 41000), (5000, 39401), (5084, 38750), (5125, 38440), (6200, 31775), (6355, 31000), (7688, 25625), (7750, 25420), (8200, 24025), (9610, 20500), (10168, 19375), (10250, 19220), (12710, 15500)]