2494180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:256

約数の個数: 48

約数和(自身を含む): 5778864

約数和(自身を除く): 3284684

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 181, 212, 260, 265, 362, 530, 689, 724, 905, 1060, 1378, 1810, 2353, 2756, 3445, 3620, 4706, 6890, 9412, 9593, 11765, 13780, 19186, 23530, 38372, 47060, 47965, 95930, 124709, 191860, 249418, 498836, 623545, 1247090, 2494180]

約数ペア:

[(1, 2494180), (2, 1247090), (4, 623545), (5, 498836), (10, 249418), (13, 191860), (20, 124709), (26, 95930), (52, 47965), (53, 47060), (65, 38372), (106, 23530), (130, 19186), (181, 13780), (212, 11765), (260, 9593), (265, 9412), (362, 6890), (530, 4706), (689, 3620), (724, 3445), (905, 2756), (1060, 2353), (1378, 1810)]