15940886

素因数分解:

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

素因数の和:141

約数の個数: 48

約数和(自身を含む): 28800240

約数和(自身を除く): 12859354

約数列:

[1, 2, 13, 19, 23, 26, 38, 46, 61, 122, 247, 299, 437, 494, 529, 598, 793, 874, 1058, 1159, 1403, 1586, 2318, 2806, 5681, 6877, 10051, 11362, 13754, 15067, 18239, 20102, 26657, 30134, 32269, 36478, 53314, 64538, 130663, 261326, 346541, 419497, 613111, 693082, 838994, 1226222, 7970443, 15940886]

約数ペア:

[(1, 15940886), (2, 7970443), (13, 1226222), (19, 838994), (23, 693082), (26, 613111), (38, 419497), (46, 346541), (61, 261326), (122, 130663), (247, 64538), (299, 53314), (437, 36478), (494, 32269), (529, 30134), (598, 26657), (793, 20102), (874, 18239), (1058, 15067), (1159, 13754), (1403, 11362), (1586, 10051), (2318, 6877), (2806, 5681)]