19794375

素因数分解:

$3^4\times 5^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:72

約数の個数: 100

約数和(自身を含む): 40824432

約数和(自身を除く): 21030057

約数列:

[1, 3, 5, 9, 15, 17, 23, 25, 27, 45, 51, 69, 75, 81, 85, 115, 125, 135, 153, 207, 225, 255, 345, 375, 391, 405, 425, 459, 575, 621, 625, 675, 765, 1035, 1125, 1173, 1275, 1377, 1725, 1863, 1875, 1955, 2025, 2125, 2295, 2875, 3105, 3375, 3519, 3825, 5175, 5625, 5865, 6375, 6885, 8625, 9315, 9775, 10125, 10557, 10625, 11475, 14375, 15525, 16875, 17595, 19125, 25875, 29325, 31671, 31875, 34425, 43125, 46575, 48875, 50625, 52785, 57375, 77625, 87975, 95625, 129375, 146625, 158355, 172125, 232875, 244375, 263925, 286875, 388125, 439875, 733125, 791775, 860625, 1164375, 1319625, 2199375, 3958875, 6598125, 19794375]

約数ペア:

[(1, 19794375), (3, 6598125), (5, 3958875), (9, 2199375), (15, 1319625), (17, 1164375), (23, 860625), (25, 791775), (27, 733125), (45, 439875), (51, 388125), (69, 286875), (75, 263925), (81, 244375), (85, 232875), (115, 172125), (125, 158355), (135, 146625), (153, 129375), (207, 95625), (225, 87975), (255, 77625), (345, 57375), (375, 52785), (391, 50625), (405, 48875), (425, 46575), (459, 43125), (575, 34425), (621, 31875), (625, 31671), (675, 29325), (765, 25875), (1035, 19125), (1125, 17595), (1173, 16875), (1275, 15525), (1377, 14375), (1725, 11475), (1863, 10625), (1875, 10557), (1955, 10125), (2025, 9775), (2125, 9315), (2295, 8625), (2875, 6885), (3105, 6375), (3375, 5865), (3519, 5625), (3825, 5175)]