47651980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{281}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 102805920

約数和(自身を除く): 55153940

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 139, 244, 278, 281, 305, 556, 562, 610, 695, 1124, 1220, 1390, 1405, 2780, 2810, 5620, 8479, 16958, 17141, 33916, 34282, 39059, 42395, 68564, 78118, 84790, 85705, 156236, 169580, 171410, 195295, 342820, 390590, 781180, 2382599, 4765198, 9530396, 11912995, 23825990, 47651980]

約数ペア:

[(1, 47651980), (2, 23825990), (4, 11912995), (5, 9530396), (10, 4765198), (20, 2382599), (61, 781180), (122, 390590), (139, 342820), (244, 195295), (278, 171410), (281, 169580), (305, 156236), (556, 85705), (562, 84790), (610, 78118), (695, 68564), (1124, 42395), (1220, 39059), (1390, 34282), (1405, 33916), (2780, 17141), (2810, 16958), (5620, 8479)]