20138290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1277}}^1$

素因数の和:1386

約数の個数: 32

約数和(自身を含む): 38646720

約数和(自身を除く): 18508430

約数列:

[1, 2, 5, 10, 19, 38, 83, 95, 166, 190, 415, 830, 1277, 1577, 2554, 3154, 6385, 7885, 12770, 15770, 24263, 48526, 105991, 121315, 211982, 242630, 529955, 1059910, 2013829, 4027658, 10069145, 20138290]

約数ペア:

[(1, 20138290), (2, 10069145), (5, 4027658), (10, 2013829), (19, 1059910), (38, 529955), (83, 242630), (95, 211982), (166, 121315), (190, 105991), (415, 48526), (830, 24263), (1277, 15770), (1577, 12770), (2554, 7885), (3154, 6385)]