20169953216

素因数分解:

$2^6\times 7^1\times {\mathrm{643}}^1\times {\mathrm{70019}}^1$

素因数の和:70681

約数の個数: 56

約数和(自身を含む): 45814366080

約数和(自身を除く): 25644412864

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 448, 643, 1286, 2572, 4501, 5144, 9002, 10288, 18004, 20576, 36008, 41152, 70019, 72016, 140038, 144032, 280076, 288064, 490133, 560152, 980266, 1120304, 1960532, 2240608, 3921064, 4481216, 7842128, 15684256, 31368512, 45022217, 90044434, 180088868, 315155519, 360177736, 630311038, 720355472, 1260622076, 1440710944, 2521244152, 2881421888, 5042488304, 10084976608, 20169953216]

約数ペア:

[(1, 20169953216), (2, 10084976608), (4, 5042488304), (7, 2881421888), (8, 2521244152), (14, 1440710944), (16, 1260622076), (28, 720355472), (32, 630311038), (56, 360177736), (64, 315155519), (112, 180088868), (224, 90044434), (448, 45022217), (643, 31368512), (1286, 15684256), (2572, 7842128), (4501, 4481216), (5144, 3921064), (9002, 2240608), (10288, 1960532), (18004, 1120304), (20576, 980266), (36008, 560152), (41152, 490133), (70019, 288064), (72016, 280076), (140038, 144032)]