278803590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{714881}}^1$

素因数の和:714904

約数の個数: 32

約数和(自身を含む): 720601056

約数和(自身を除く): 441797466

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 714881, 1429762, 2144643, 3574405, 4289286, 7148810, 9293453, 10723215, 18586906, 21446430, 27880359, 46467265, 55760718, 92934530, 139401795, 278803590]

約数ペア:

[(1, 278803590), (2, 139401795), (3, 92934530), (5, 55760718), (6, 46467265), (10, 27880359), (13, 21446430), (15, 18586906), (26, 10723215), (30, 9293453), (39, 7148810), (65, 4289286), (78, 3574405), (130, 2144643), (195, 1429762), (390, 714881)]