19543875

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 37040640

約数和(自身を除く): 17496765

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 125, 195, 211, 247, 285, 325, 375, 475, 633, 741, 975, 1055, 1235, 1425, 1625, 2375, 2743, 3165, 3705, 4009, 4875, 5275, 6175, 7125, 8229, 12027, 13715, 15825, 18525, 20045, 26375, 30875, 41145, 52117, 60135, 68575, 79125, 92625, 100225, 156351, 205725, 260585, 300675, 342875, 501125, 781755, 1028625, 1302925, 1503375, 3908775, 6514625, 19543875]

約数ペア:

[(1, 19543875), (3, 6514625), (5, 3908775), (13, 1503375), (15, 1302925), (19, 1028625), (25, 781755), (39, 501125), (57, 342875), (65, 300675), (75, 260585), (95, 205725), (125, 156351), (195, 100225), (211, 92625), (247, 79125), (285, 68575), (325, 60135), (375, 52117), (475, 41145), (633, 30875), (741, 26375), (975, 20045), (1055, 18525), (1235, 15825), (1425, 13715), (1625, 12027), (2375, 8229), (2743, 7125), (3165, 6175), (3705, 5275), (4009, 4875)]