209213480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{7703}}^1$

素因数の和:7818

約数の個数: 64

約数和(自身を含む): 543594240

約数和(自身を除く): 334380760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 97, 140, 194, 280, 388, 485, 679, 776, 970, 1358, 1940, 2716, 3395, 3880, 5432, 6790, 7703, 13580, 15406, 27160, 30812, 38515, 53921, 61624, 77030, 107842, 154060, 215684, 269605, 308120, 431368, 539210, 747191, 1078420, 1494382, 2156840, 2988764, 3735955, 5230337, 5977528, 7471910, 10460674, 14943820, 20921348, 26151685, 29887640, 41842696, 52303370, 104606740, 209213480]

約数ペア:

[(1, 209213480), (2, 104606740), (4, 52303370), (5, 41842696), (7, 29887640), (8, 26151685), (10, 20921348), (14, 14943820), (20, 10460674), (28, 7471910), (35, 5977528), (40, 5230337), (56, 3735955), (70, 2988764), (97, 2156840), (140, 1494382), (194, 1078420), (280, 747191), (388, 539210), (485, 431368), (679, 308120), (776, 269605), (970, 215684), (1358, 154060), (1940, 107842), (2716, 77030), (3395, 61624), (3880, 53921), (5432, 38515), (6790, 30812), (7703, 27160), (13580, 15406)]