31881772

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{61}}^1$

素因数の和:143

約数の個数: 72

約数和(自身を含む): 67200560

約数和(自身を除く): 35318788

約数列:

[1, 2, 4, 13, 19, 23, 26, 38, 46, 52, 61, 76, 92, 122, 244, 247, 299, 437, 494, 529, 598, 793, 874, 988, 1058, 1159, 1196, 1403, 1586, 1748, 2116, 2318, 2806, 3172, 4636, 5612, 5681, 6877, 10051, 11362, 13754, 15067, 18239, 20102, 22724, 26657, 27508, 30134, 32269, 36478, 40204, 53314, 60268, 64538, 72956, 106628, 129076, 130663, 261326, 346541, 419497, 522652, 613111, 693082, 838994, 1226222, 1386164, 1677988, 2452444, 7970443, 15940886, 31881772]

約数ペア:

[(1, 31881772), (2, 15940886), (4, 7970443), (13, 2452444), (19, 1677988), (23, 1386164), (26, 1226222), (38, 838994), (46, 693082), (52, 613111), (61, 522652), (76, 419497), (92, 346541), (122, 261326), (244, 130663), (247, 129076), (299, 106628), (437, 72956), (494, 64538), (529, 60268), (598, 53314), (793, 40204), (874, 36478), (988, 32269), (1058, 30134), (1159, 27508), (1196, 26657), (1403, 22724), (1586, 20102), (1748, 18239), (2116, 15067), (2318, 13754), (2806, 11362), (3172, 10051), (4636, 6877), (5612, 5681)]