20854210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8443}}^1$

素因数の和:8482

約数の個数: 32

約数和(自身を含む): 42557760

約数和(自身を除く): 21703550

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8443, 16886, 42215, 84430, 109759, 160417, 219518, 320834, 548795, 802085, 1097590, 1604170, 2085421, 4170842, 10427105, 20854210]

約数ペア:

[(1, 20854210), (2, 10427105), (5, 4170842), (10, 2085421), (13, 1604170), (19, 1097590), (26, 802085), (38, 548795), (65, 320834), (95, 219518), (130, 160417), (190, 109759), (247, 84430), (494, 42215), (1235, 16886), (2470, 8443)]