18289875

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 34145280

約数和(自身を除く): 15855405

約数列:

[1, 3, 5, 15, 17, 19, 25, 51, 57, 75, 85, 95, 125, 151, 255, 285, 323, 375, 425, 453, 475, 755, 969, 1275, 1425, 1615, 2125, 2265, 2375, 2567, 2869, 3775, 4845, 6375, 7125, 7701, 8075, 8607, 11325, 12835, 14345, 18875, 24225, 38505, 40375, 43035, 48773, 56625, 64175, 71725, 121125, 146319, 192525, 215175, 243865, 320875, 358625, 731595, 962625, 1075875, 1219325, 3657975, 6096625, 18289875]

約数ペア:

[(1, 18289875), (3, 6096625), (5, 3657975), (15, 1219325), (17, 1075875), (19, 962625), (25, 731595), (51, 358625), (57, 320875), (75, 243865), (85, 215175), (95, 192525), (125, 146319), (151, 121125), (255, 71725), (285, 64175), (323, 56625), (375, 48773), (425, 43035), (453, 40375), (475, 38505), (755, 24225), (969, 18875), (1275, 14345), (1425, 12835), (1615, 11325), (2125, 8607), (2265, 8075), (2375, 7701), (2567, 7125), (2869, 6375), (3775, 4845)]