20617432

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{59}}^1$

素因数の和:125

約数の個数: 72

約数和(自身を含む): 45605700

約数和(自身を除く): 24988268

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 59, 76, 88, 118, 121, 152, 209, 236, 242, 361, 418, 472, 484, 649, 722, 836, 968, 1121, 1298, 1444, 1672, 2242, 2299, 2596, 2888, 3971, 4484, 4598, 5192, 7139, 7942, 8968, 9196, 12331, 14278, 15884, 18392, 21299, 24662, 28556, 31768, 42598, 43681, 49324, 57112, 85196, 87362, 98648, 135641, 170392, 174724, 234289, 271282, 349448, 468578, 542564, 937156, 1085128, 1874312, 2577179, 5154358, 10308716, 20617432]

約数ペア:

[(1, 20617432), (2, 10308716), (4, 5154358), (8, 2577179), (11, 1874312), (19, 1085128), (22, 937156), (38, 542564), (44, 468578), (59, 349448), (76, 271282), (88, 234289), (118, 174724), (121, 170392), (152, 135641), (209, 98648), (236, 87362), (242, 85196), (361, 57112), (418, 49324), (472, 43681), (484, 42598), (649, 31768), (722, 28556), (836, 24662), (968, 21299), (1121, 18392), (1298, 15884), (1444, 14278), (1672, 12331), (2242, 9196), (2299, 8968), (2596, 7942), (2888, 7139), (3971, 5192), (4484, 4598)]