31671380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{673}}^1$

素因数の和:876

約数の個数: 48

約数和(自身を含む): 72128784

約数和(自身を除く): 40457404

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 181, 260, 362, 673, 724, 905, 1346, 1810, 2353, 2692, 3365, 3620, 4706, 6730, 8749, 9412, 11765, 13460, 17498, 23530, 34996, 43745, 47060, 87490, 121813, 174980, 243626, 487252, 609065, 1218130, 1583569, 2436260, 3167138, 6334276, 7917845, 15835690, 31671380]

約数ペア:

[(1, 31671380), (2, 15835690), (4, 7917845), (5, 6334276), (10, 3167138), (13, 2436260), (20, 1583569), (26, 1218130), (52, 609065), (65, 487252), (130, 243626), (181, 174980), (260, 121813), (362, 87490), (673, 47060), (724, 43745), (905, 34996), (1346, 23530), (1810, 17498), (2353, 13460), (2692, 11765), (3365, 9412), (3620, 8749), (4706, 6730)]