20361776

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:357

約数の個数: 40

約数和(自身を含む): 40622400

約数和(自身を除く): 20260624

約数列:

[1, 2, 4, 8, 16, 79, 89, 158, 178, 181, 316, 356, 362, 632, 712, 724, 1264, 1424, 1448, 2896, 7031, 14062, 14299, 16109, 28124, 28598, 32218, 56248, 57196, 64436, 112496, 114392, 128872, 228784, 257744, 1272611, 2545222, 5090444, 10180888, 20361776]

約数ペア:

[(1, 20361776), (2, 10180888), (4, 5090444), (8, 2545222), (16, 1272611), (79, 257744), (89, 228784), (158, 128872), (178, 114392), (181, 112496), (316, 64436), (356, 57196), (362, 56248), (632, 32218), (712, 28598), (724, 28124), (1264, 16109), (1424, 14299), (1448, 14062), (2896, 7031)]