16720275

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1559}}^1$

素因数の和:1596

約数の個数: 48

約数和(自身を含む): 32497920

約数和(自身を除く): 15777645

約数列:

[1, 3, 5, 11, 13, 15, 25, 33, 39, 55, 65, 75, 143, 165, 195, 275, 325, 429, 715, 825, 975, 1559, 2145, 3575, 4677, 7795, 10725, 17149, 20267, 23385, 38975, 51447, 60801, 85745, 101335, 116925, 222937, 257235, 304005, 428725, 506675, 668811, 1114685, 1286175, 1520025, 3344055, 5573425, 16720275]

約数ペア:

[(1, 16720275), (3, 5573425), (5, 3344055), (11, 1520025), (13, 1286175), (15, 1114685), (25, 668811), (33, 506675), (39, 428725), (55, 304005), (65, 257235), (75, 222937), (143, 116925), (165, 101335), (195, 85745), (275, 60801), (325, 51447), (429, 38975), (715, 23385), (825, 20267), (975, 17149), (1559, 10725), (2145, 7795), (3575, 4677)]