20689328

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{269}}^1$

素因数の和:330

約数の個数: 80

約数和(自身を含む): 48211200

約数和(自身を除く): 27521872

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 23, 38, 44, 46, 76, 88, 92, 152, 176, 184, 209, 253, 269, 304, 368, 418, 437, 506, 538, 836, 874, 1012, 1076, 1672, 1748, 2024, 2152, 2959, 3344, 3496, 4048, 4304, 4807, 5111, 5918, 6187, 6992, 9614, 10222, 11836, 12374, 19228, 20444, 23672, 24748, 38456, 40888, 47344, 49496, 56221, 68057, 76912, 81776, 98992, 112442, 117553, 136114, 224884, 235106, 272228, 449768, 470212, 544456, 899536, 940424, 1088912, 1293083, 1880848, 2586166, 5172332, 10344664, 20689328]

約数ペア:

[(1, 20689328), (2, 10344664), (4, 5172332), (8, 2586166), (11, 1880848), (16, 1293083), (19, 1088912), (22, 940424), (23, 899536), (38, 544456), (44, 470212), (46, 449768), (76, 272228), (88, 235106), (92, 224884), (152, 136114), (176, 117553), (184, 112442), (209, 98992), (253, 81776), (269, 76912), (304, 68057), (368, 56221), (418, 49496), (437, 47344), (506, 40888), (538, 38456), (836, 24748), (874, 23672), (1012, 20444), (1076, 19228), (1672, 12374), (1748, 11836), (2024, 10222), (2152, 9614), (2959, 6992), (3344, 6187), (3496, 5918), (4048, 5111), (4304, 4807)]