201639100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1423}}^1$

素因数の和:1559

約数の個数: 72

約数和(自身を含む): 475872320

約数和(自身を除く): 274233220

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 109, 130, 218, 260, 325, 436, 545, 650, 1090, 1300, 1417, 1423, 2180, 2725, 2834, 2846, 5450, 5668, 5692, 7085, 7115, 10900, 14170, 14230, 18499, 28340, 28460, 35425, 35575, 36998, 70850, 71150, 73996, 92495, 141700, 142300, 155107, 184990, 310214, 369980, 462475, 620428, 775535, 924950, 1551070, 1849900, 2016391, 3102140, 3877675, 4032782, 7755350, 8065564, 10081955, 15510700, 20163910, 40327820, 50409775, 100819550, 201639100]

約数ペア:

[(1, 201639100), (2, 100819550), (4, 50409775), (5, 40327820), (10, 20163910), (13, 15510700), (20, 10081955), (25, 8065564), (26, 7755350), (50, 4032782), (52, 3877675), (65, 3102140), (100, 2016391), (109, 1849900), (130, 1551070), (218, 924950), (260, 775535), (325, 620428), (436, 462475), (545, 369980), (650, 310214), (1090, 184990), (1300, 155107), (1417, 142300), (1423, 141700), (2180, 92495), (2725, 73996), (2834, 71150), (2846, 70850), (5450, 36998), (5668, 35575), (5692, 35425), (7085, 28460), (7115, 28340), (10900, 18499), (14170, 14230)]