20306704

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{617}}^1$

素因数の和:664

約数の個数: 60

約数和(自身を含む): 45864252

約数和(自身を除く): 25557548

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 121, 136, 176, 187, 242, 272, 374, 484, 617, 748, 968, 1234, 1496, 1936, 2057, 2468, 2992, 4114, 4936, 6787, 8228, 9872, 10489, 13574, 16456, 20978, 27148, 32912, 41956, 54296, 74657, 83912, 108592, 115379, 149314, 167824, 230758, 298628, 461516, 597256, 923032, 1194512, 1269169, 1846064, 2538338, 5076676, 10153352, 20306704]

約数ペア:

[(1, 20306704), (2, 10153352), (4, 5076676), (8, 2538338), (11, 1846064), (16, 1269169), (17, 1194512), (22, 923032), (34, 597256), (44, 461516), (68, 298628), (88, 230758), (121, 167824), (136, 149314), (176, 115379), (187, 108592), (242, 83912), (272, 74657), (374, 54296), (484, 41956), (617, 32912), (748, 27148), (968, 20978), (1234, 16456), (1496, 13574), (1936, 10489), (2057, 9872), (2468, 8228), (2992, 6787), (4114, 4936)]