209991808

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1301}}^1$

素因数の和:1425

約数の個数: 64

約数和(自身を含む): 455517720

約数和(自身を除く): 245525912

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 97, 104, 128, 194, 208, 388, 416, 776, 832, 1261, 1301, 1552, 1664, 2522, 2602, 3104, 5044, 5204, 6208, 10088, 10408, 12416, 16913, 20176, 20816, 33826, 40352, 41632, 67652, 80704, 83264, 126197, 135304, 161408, 166528, 252394, 270608, 504788, 541216, 1009576, 1082432, 1640561, 2019152, 2164864, 3281122, 4038304, 6562244, 8076608, 13124488, 16153216, 26248976, 52497952, 104995904, 209991808]

約数ペア:

[(1, 209991808), (2, 104995904), (4, 52497952), (8, 26248976), (13, 16153216), (16, 13124488), (26, 8076608), (32, 6562244), (52, 4038304), (64, 3281122), (97, 2164864), (104, 2019152), (128, 1640561), (194, 1082432), (208, 1009576), (388, 541216), (416, 504788), (776, 270608), (832, 252394), (1261, 166528), (1301, 161408), (1552, 135304), (1664, 126197), (2522, 83264), (2602, 80704), (3104, 67652), (5044, 41632), (5204, 40352), (6208, 33826), (10088, 20816), (10408, 20176), (12416, 16913)]