1999841805

素因数分解:

$3^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{379837}}^1$

素因数の和:379867

約数の個数: 40

約数和(自身を含む): 3860673432

約数和(自身を除く): 1860831627

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 195, 351, 405, 585, 1053, 1755, 5265, 379837, 1139511, 1899185, 3418533, 4937881, 5697555, 10255599, 14813643, 17092665, 24689405, 30766797, 44440929, 51277995, 74068215, 133322787, 153833985, 222204645, 399968361, 666613935, 1999841805]

約数ペア:

[(1, 1999841805), (3, 666613935), (5, 399968361), (9, 222204645), (13, 153833985), (15, 133322787), (27, 74068215), (39, 51277995), (45, 44440929), (65, 30766797), (81, 24689405), (117, 17092665), (135, 14813643), (195, 10255599), (351, 5697555), (405, 4937881), (585, 3418533), (1053, 1899185), (1755, 1139511), (5265, 379837)]