28752185

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 47775744

約数和(自身を除く): 19023559

約数列:

[1, 5, 7, 11, 17, 23, 35, 55, 77, 85, 115, 119, 161, 187, 191, 253, 385, 391, 595, 805, 935, 955, 1265, 1309, 1337, 1771, 1955, 2101, 2737, 3247, 4301, 4393, 6545, 6685, 8855, 10505, 13685, 14707, 16235, 21505, 21965, 22729, 30107, 30751, 35717, 48323, 73535, 74681, 113645, 150535, 153755, 178585, 241615, 250019, 338261, 373405, 522767, 821491, 1250095, 1691305, 2613835, 4107455, 5750437, 28752185]

約数ペア:

[(1, 28752185), (5, 5750437), (7, 4107455), (11, 2613835), (17, 1691305), (23, 1250095), (35, 821491), (55, 522767), (77, 373405), (85, 338261), (115, 250019), (119, 241615), (161, 178585), (187, 153755), (191, 150535), (253, 113645), (385, 74681), (391, 73535), (595, 48323), (805, 35717), (935, 30751), (955, 30107), (1265, 22729), (1309, 21965), (1337, 21505), (1771, 16235), (1955, 14707), (2101, 13685), (2737, 10505), (3247, 8855), (4301, 6685), (4393, 6545)]