209729910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{537769}}^1$

素因数の和:537792

約数の個数: 32

約数和(自身を含む): 542072160

約数和(自身を除く): 332342250

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 537769, 1075538, 1613307, 2688845, 3226614, 5377690, 6990997, 8066535, 13981994, 16133070, 20972991, 34954985, 41945982, 69909970, 104864955, 209729910]

約数ペア:

[(1, 209729910), (2, 104864955), (3, 69909970), (5, 41945982), (6, 34954985), (10, 20972991), (13, 16133070), (15, 13981994), (26, 8066535), (30, 6990997), (39, 5377690), (65, 3226614), (78, 2688845), (130, 1613307), (195, 1075538), (390, 537769)]