201511300

素因数分解:

$2^2\times 5^2\times {\mathrm{53}}^1\times {\mathrm{193}}^1\times {\mathrm{197}}^1$

素因数の和:457

約数の個数: 72

約数和(自身を含む): 450111816

約数和(自身を除く): 248600516

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 100, 106, 193, 197, 212, 265, 386, 394, 530, 772, 788, 965, 985, 1060, 1325, 1930, 1970, 2650, 3860, 3940, 4825, 4925, 5300, 9650, 9850, 10229, 10441, 19300, 19700, 20458, 20882, 38021, 40916, 41764, 51145, 52205, 76042, 102290, 104410, 152084, 190105, 204580, 208820, 255725, 261025, 380210, 511450, 522050, 760420, 950525, 1022900, 1044100, 1901050, 2015113, 3802100, 4030226, 8060452, 10075565, 20151130, 40302260, 50377825, 100755650, 201511300]

約数ペア:

[(1, 201511300), (2, 100755650), (4, 50377825), (5, 40302260), (10, 20151130), (20, 10075565), (25, 8060452), (50, 4030226), (53, 3802100), (100, 2015113), (106, 1901050), (193, 1044100), (197, 1022900), (212, 950525), (265, 760420), (386, 522050), (394, 511450), (530, 380210), (772, 261025), (788, 255725), (965, 208820), (985, 204580), (1060, 190105), (1325, 152084), (1930, 104410), (1970, 102290), (2650, 76042), (3860, 52205), (3940, 51145), (4825, 41764), (4925, 40916), (5300, 38021), (9650, 20882), (9850, 20458), (10229, 19700), (10441, 19300)]