15387975

素因数分解:

$3^5\times 5^2\times {\mathrm{17}}^1\times {\mathrm{149}}^1$

素因数の和:191

約数の個数: 72

約数和(自身を含む): 30466800

約数和(自身を除く): 15078825

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 81, 85, 135, 149, 153, 225, 243, 255, 405, 425, 447, 459, 675, 745, 765, 1215, 1275, 1341, 1377, 2025, 2235, 2295, 2533, 3725, 3825, 4023, 4131, 6075, 6705, 6885, 7599, 11175, 11475, 12069, 12665, 20115, 20655, 22797, 33525, 34425, 36207, 37995, 60345, 63325, 68391, 100575, 103275, 113985, 181035, 189975, 205173, 301725, 341955, 569925, 615519, 905175, 1025865, 1709775, 3077595, 5129325, 15387975]

約数ペア:

[(1, 15387975), (3, 5129325), (5, 3077595), (9, 1709775), (15, 1025865), (17, 905175), (25, 615519), (27, 569925), (45, 341955), (51, 301725), (75, 205173), (81, 189975), (85, 181035), (135, 113985), (149, 103275), (153, 100575), (225, 68391), (243, 63325), (255, 60345), (405, 37995), (425, 36207), (447, 34425), (459, 33525), (675, 22797), (745, 20655), (765, 20115), (1215, 12665), (1275, 12069), (1341, 11475), (1377, 11175), (2025, 7599), (2235, 6885), (2295, 6705), (2533, 6075), (3725, 4131), (3825, 4023)]