20161763080

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1\times {\mathrm{15443}}^1$

素因数の和:15838

約数の個数: 64

約数和(自身を含む): 45902039040

約数和(自身を除く): 25740275960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 257, 508, 514, 635, 1016, 1028, 1270, 1285, 2056, 2540, 2570, 5080, 5140, 10280, 15443, 30886, 32639, 61772, 65278, 77215, 123544, 130556, 154430, 163195, 261112, 308860, 326390, 617720, 652780, 1305560, 1961261, 3922522, 3968851, 7845044, 7937702, 9806305, 15690088, 15875404, 19612610, 19844255, 31750808, 39225220, 39688510, 78450440, 79377020, 158754040, 504044077, 1008088154, 2016176308, 2520220385, 4032352616, 5040440770, 10080881540, 20161763080]

約数ペア:

[(1, 20161763080), (2, 10080881540), (4, 5040440770), (5, 4032352616), (8, 2520220385), (10, 2016176308), (20, 1008088154), (40, 504044077), (127, 158754040), (254, 79377020), (257, 78450440), (508, 39688510), (514, 39225220), (635, 31750808), (1016, 19844255), (1028, 19612610), (1270, 15875404), (1285, 15690088), (2056, 9806305), (2540, 7937702), (2570, 7845044), (5080, 3968851), (5140, 3922522), (10280, 1961261), (15443, 1305560), (30886, 652780), (32639, 617720), (61772, 326390), (65278, 308860), (77215, 261112), (123544, 163195), (130556, 154430)]