20872930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{523}}^1$

素因数の和:850

約数の個数: 32

約数和(自身を含む): 40670784

約数和(自身を除く): 19797854

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 307, 523, 614, 1046, 1535, 2615, 3070, 3991, 5230, 6799, 7982, 13598, 19955, 33995, 39910, 67990, 160561, 321122, 802805, 1605610, 2087293, 4174586, 10436465, 20872930]

約数ペア:

[(1, 20872930), (2, 10436465), (5, 4174586), (10, 2087293), (13, 1605610), (26, 802805), (65, 321122), (130, 160561), (307, 67990), (523, 39910), (614, 33995), (1046, 19955), (1535, 13598), (2615, 7982), (3070, 6799), (3991, 5230)]