80856875

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{619}}^1$

素因数の和:669

約数の個数: 40

約数和(自身を含む): 116212800

約数和(自身を除く): 35355925

約数列:

[1, 5, 11, 19, 25, 55, 95, 125, 209, 275, 475, 619, 625, 1045, 1375, 2375, 3095, 5225, 6809, 6875, 11761, 11875, 15475, 26125, 34045, 58805, 77375, 129371, 130625, 170225, 294025, 386875, 646855, 851125, 1470125, 3234275, 4255625, 7350625, 16171375, 80856875]

約数ペア:

[(1, 80856875), (5, 16171375), (11, 7350625), (19, 4255625), (25, 3234275), (55, 1470125), (95, 851125), (125, 646855), (209, 386875), (275, 294025), (475, 170225), (619, 130625), (625, 129371), (1045, 77375), (1375, 58805), (2375, 34045), (3095, 26125), (5225, 15475), (6809, 11875), (6875, 11761)]