20918300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{16091}}^1$

素因数の和:16118

約数の個数: 36

約数和(自身を含む): 48887496

約数和(自身を除く): 27969196

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 16091, 32182, 64364, 80455, 160910, 209183, 321820, 402275, 418366, 804550, 836732, 1045915, 1609100, 2091830, 4183660, 5229575, 10459150, 20918300]

約数ペア:

[(1, 20918300), (2, 10459150), (4, 5229575), (5, 4183660), (10, 2091830), (13, 1609100), (20, 1045915), (25, 836732), (26, 804550), (50, 418366), (52, 402275), (65, 321820), (100, 209183), (130, 160910), (260, 80455), (325, 64364), (650, 32182), (1300, 16091)]