201915375

素因数分解:

$3^1\times 5^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1667}}^1$

素因数の和:1721

約数の個数: 64

約数和(自身を含む): 374699520

約数和(自身を除く): 172784145

約数列:

[1, 3, 5, 15, 17, 19, 25, 51, 57, 75, 85, 95, 125, 255, 285, 323, 375, 425, 475, 969, 1275, 1425, 1615, 1667, 2125, 2375, 4845, 5001, 6375, 7125, 8075, 8335, 24225, 25005, 28339, 31673, 40375, 41675, 85017, 95019, 121125, 125025, 141695, 158365, 208375, 425085, 475095, 538441, 625125, 708475, 791825, 1615323, 2125425, 2375475, 2692205, 3542375, 3959125, 8076615, 10627125, 11877375, 13461025, 40383075, 67305125, 201915375]

約数ペア:

[(1, 201915375), (3, 67305125), (5, 40383075), (15, 13461025), (17, 11877375), (19, 10627125), (25, 8076615), (51, 3959125), (57, 3542375), (75, 2692205), (85, 2375475), (95, 2125425), (125, 1615323), (255, 791825), (285, 708475), (323, 625125), (375, 538441), (425, 475095), (475, 425085), (969, 208375), (1275, 158365), (1425, 141695), (1615, 125025), (1667, 121125), (2125, 95019), (2375, 85017), (4845, 41675), (5001, 40375), (6375, 31673), (7125, 28339), (8075, 25005), (8335, 24225)]