200012990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:437

約数の個数: 64

約数和(自身を含む): 394709760

約数和(自身を除く): 194696770

約数列:

[1, 2, 5, 10, 17, 34, 53, 79, 85, 106, 158, 170, 265, 281, 395, 530, 562, 790, 901, 1343, 1405, 1802, 2686, 2810, 4187, 4505, 4777, 6715, 8374, 9010, 9554, 13430, 14893, 20935, 22199, 23885, 29786, 41870, 44398, 47770, 71179, 74465, 110995, 142358, 148930, 221990, 253181, 355895, 377383, 506362, 711790, 754766, 1176547, 1265905, 1886915, 2353094, 2531810, 3773830, 5882735, 11765470, 20001299, 40002598, 100006495, 200012990]

約数ペア:

[(1, 200012990), (2, 100006495), (5, 40002598), (10, 20001299), (17, 11765470), (34, 5882735), (53, 3773830), (79, 2531810), (85, 2353094), (106, 1886915), (158, 1265905), (170, 1176547), (265, 754766), (281, 711790), (395, 506362), (530, 377383), (562, 355895), (790, 253181), (901, 221990), (1343, 148930), (1405, 142358), (1802, 110995), (2686, 74465), (2810, 71179), (4187, 47770), (4505, 44398), (4777, 41870), (6715, 29786), (8374, 23885), (9010, 22199), (9554, 20935), (13430, 14893)]