20381330372

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{359}}^1\times {\mathrm{83983}}^1$

素因数の和:84372

約数の個数: 36

約数和(自身を含む): 38730061440

約数和(自身を除く): 18348731068

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 359, 676, 718, 1436, 4667, 9334, 18668, 60671, 83983, 121342, 167966, 242684, 335932, 1091779, 2183558, 4367116, 14193127, 28386254, 30149897, 56772508, 60299794, 120599588, 391948661, 783897322, 1567794644, 5095332593, 10190665186, 20381330372]

約数ペア:

[(1, 20381330372), (2, 10190665186), (4, 5095332593), (13, 1567794644), (26, 783897322), (52, 391948661), (169, 120599588), (338, 60299794), (359, 56772508), (676, 30149897), (718, 28386254), (1436, 14193127), (4667, 4367116), (9334, 2183558), (18668, 1091779), (60671, 335932), (83983, 242684), (121342, 167966)]